# Growth Rate Calculator MCP

> The Growth Rate Calculator analyzes your financial history to pinpoint exactly how fast you're growing. It computes Month-over-Month, Quarter-over-Quarter, and Year-over-Year rates. Need long-term metrics? It calculates Compound Annual Growth Rate (CAGR) and the Rule of 40 score. Plus, it runs full twelve-month projections under accelerated or decelerated scenarios.

## Overview
- **Category:** finance
- **Price:** Free
- **Tags:** cagr, rule-of-40, ltvcac, yoy, qoq

## Description

Figuring out if your growth is real, sustainable, or just a blip requires looking at more than last month's revenue number. This MCP lets you analyze historical financial data to understand directional momentum and long-term health simultaneously. You can track immediate changes—like comparing this quarter to the last—and then build out steady benchmarks like CAGR, which shows sustained growth over years. It also checks your operational efficiency using the Rule of 40 score, combining revenue performance with profitability. The real power is seeing where you'll land next; it models a full year of projected revenue under different market assumptions. If you use Vinkius to connect this MCP to your agent, you get a unified view that goes far beyond what standard BI tools provide.

## Tools

### analyze_historical_growth
Reads a list of dates and revenues to calculate immediate growth rates (MoM, QoQ, YoY) across your data.

### calculate_key_rates
Uses revenue and EBITDA figures to determine the Compound Annual Growth Rate (CAGR) and Rule of 40 score.

### generate_growth_projection
Forecasts your next twelve months of revenue under three defined growth scenarios: Constant, Accelerated, or Decelerated.

## Prompt Examples

**Prompt:** 
```
I have historical revenue data for the last 3 years, and I want to see my MoM, QoQ, and YoY growth rates. The data includes dates from '2021-01' to '2023-12'.
```

**Response:** 
```
Run the `analyze_historical_growth` tool with my data points and set the time granularity to 'Month'. This will show me all directional changes.
```

**Prompt:** 
```
Based on my 5 years of revenue data and associated EBITDA, what is my CAGR and Rule of 40 score?
```

**Response:** 
```
I need to use the `calculate_key_rates` tool. I will provide the start value, end value, years elapsed (5), and a list of all historical revenue/EBITDA metrics for accurate calculation.
```

**Prompt:** 
```
Project my revenue for the next year assuming aggressive, accelerating growth. My last known revenue was $10M, and I estimate a monthly rate shift of +7%.
```

**Response:** 
```
I will use the `generate_growth_projection` tool. I'll set the last known revenue to 10,000,000, the horizon months to 12, the scenario to 'Accelerated', and provide the base monthly growth rate (if applicable) and the rate determiner of 7%.
```

## Capabilities

### Benchmark Growth Rate
It calculates year-over-year and quarter-over-quarter growth percentages from any historical dataset.

### Measure Sustained Performance
It determines the Compound Annual Growth Rate (CAGR) to track long-term financial stability across multiple years.

### Assess Operational Efficiency
It computes the Rule of 40 score, giving you a single number that balances your growth rate against profitability.

### Model Future Revenue
It projects full twelve-month revenue figures based on constant, accelerated, or decelerated growth assumptions.

## Use Cases

### Quarterly Budget Review
The finance director needs to prove growth momentum. They run analyze_historical_growth on three years of data, quickly identifying which quarter had the steepest YoY spike and presenting that immediately.

### Product Investment Planning
A Product Manager wants to justify spending $5M next year. They use generate_growth_projection, running a 'Decelerated' scenario to set realistic expectations and proving the need for caution.

### Evaluating Business Health
A founder needs an overall health score. They input revenue/EBITDA into calculate_key_rates, getting both the Rule of 40 and CAGR scores in one pass to prove operational efficiency.

## Benefits

- Pinpoint immediate trends instantly. Use the analyze_historical_growth tool to see Month-over-Month, Quarter-over-Quarter, or Year-over-Year changes without building a single chart.
- Get a holistic health check using calculate_key_rates. It combines your growth and profitability into the Rule of 40 score—a metric you can't easily replicate in Excel.
- Plan for the next year with confidence. generate_growth_projection lets you model accelerated or decelerated scenarios, giving you three clear revenue paths to present to leadership.
- Stop guessing about sustainability. By using calculate_key_rates, you get CAGR, a single number that validates if your growth is genuinely stable over time.
- Speed up strategic planning. You don't have to manually pull data from multiple reports; just feed it all in and get the full picture immediately.

## How It Works

The bottom line is that it takes raw historical numbers and turns them into actionable growth metrics and future predictions.

1. First, feed the system a JSON array containing historical dates and revenue numbers to analyze immediate changes.
2. Next, supply the data including both revenue and EBITDA metrics so it can compute key benchmarks like CAGR and Rule of 40 score.
3. Finally, input your most recent revenue figure and specify if you want an accelerated or decelerated projection rate for a full twelve-month forecast.

## Frequently Asked Questions

**How does analyze_historical_growth calculate growth rates?**
It compares your revenue data across time periods (Month-over-Month, Quarter-over-Quarter, Year-over-Year) to show instant directional changes and volatility.

**Do I need separate sheets for CAGR and Rule of 40 when using calculate_key_rates?**
No. You provide the required revenue/EBITDA metrics, and the tool computes both the Compound Annual Growth Rate (CAGR) and the Rule of 40 score in a single analysis.

**How do I set up accelerate or decelerate growth with generate_growth_projection?**
You must provide a 'rateDeterminer' value, which is the percentage shift you expect monthly. The tool uses this rate alongside your last known revenue to build the 12-month forecast.

**Is analyze_historical_growth only for revenue data?**
It analyzes historical growth across time periods, requiring date and revenue fields in a JSON array. It focuses on directional momentum metrics.

**What happens if I use `calculate_key_rates` but have missing or mismatched EBITDA values?**
The tool will return an error flagging the incomplete data points. You must ensure that every entry in your JSON array has corresponding revenue and ebitda metrics for the calculation to work.

**Can I use `analyze_historical_growth` to compare multiple, separate datasets (like different regions' revenues)?**
You must combine all relevant data into a single JSON array structure. The tool processes one continuous dataset at a time; it cannot analyze disparate sources separately.

**If my historical data is only for a short period, how does `calculate_key_rates` handle the CAGR calculation?**
The tool requires sufficient historical depth to establish a reliable growth rate. If you pass too few years of data, it will generate an error indicating insufficient time elapsed.

**Are there any rate limits when running multiple scenarios with `generate_growth_projection`?**
Vinkius imposes standard API usage limits for all complex projections. For high-volume forecasting, you should utilize batch processing or check the platform's documentation for specific throttling rules.

**Does the calculator only look at monthly data?**
No. The `analyze_historical_growth` tool allows you to specify the time granularity ('Month', 'Quarter', or 'Year'). This ensures that whether you are looking for short-term momentum (MoM) or long-term seasonal trends (YoY), the comparison is accurate based on your data.

**What is the difference between CAGR and Rule of 40?**
CAGR measures the overall smooth, annualized growth rate over a long period. The Rule of 40 uses `calculate_key_rates` to provide a composite score (Growth Rate % + EBITDA Margin %). It is a single metric that tells investors about both revenue expansion and operational profitability simultaneously.

**Can I predict revenue for more than 12 months?**
The `generate_growth_projection` tool is designed to project a full twelve-month (12-month) forecast horizon. While you can adjust the inputs, the default and most reliable projection window provided by this server is exactly one year.