Profit Margin
Understand profit as a share of your revenue.
Business & Work · FREE TO USE
Sales Tax
Add a tax rate or find the tax inside a total.
02EXAMPLE RESULT
Total including tax
108.5
currency units
Amount before tax100currency units
Tax amount8.5currency units
Results update as you type. Calculate adds a snapshot to your history.
How this calculation works
Use the tax rate that applies to your transaction. This arithmetic tool does not determine local tax rates, exemptions, or filing obligations.
Add: total = subtotal × (1 + rate). Included: subtotal = total ÷ (1 + rate).
Your calculation, step by step
- Total = 100 × (1 + 0.085) = 108.5.
- Tax = 108.5 − 100 = 8.5.
A worked example
100 plus 8.5% tax is 108.50.
Work through an example.
Inspect the assumptions and limits before applying a result.