Percentage calculator
Percent of, percent change, reverse percent, and margin, with the formula shown.
Runs in browser
Use from your agent
Streamable HTTP at https://benchline.fabwaseem.com/mcp. No key. The tool name is calculate_percentage.
mcp.jsonjson
1{
2 "mcpServers": {
3 "benchline": {
4 "url": "https://benchline.fabwaseem.com/mcp"
5 }
6 }
7}
tools/calljson
1{
2 "jsonrpc": "2.0",
3 "id": 1,
4 "method": "tools/call",
5 "params": {
6 "name": "calculate_percentage",
7 "arguments": {
8 "mode": "of",
9 "a": "example",
10 "b": "example"
11 }
12 }
13}
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How it works
Free percentage calculator. Find X% of Y, what percent X is of Y, the change from one number to another, the original value, an increase or decrease, and margin versus markup. Arithmetic uses decimal rounding.
- 01
Choose the form
Percent of a value, what percent one value is of another, change, reverse, increase, decrease, or margin.
- 02
Enter the two numbers
The labels change with the form. Margin asks for cost and price.
- 03
Read the formula
The result sits next to the expression that produced it.