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Percentage Calculator — Tips, Discounts, Tax and % Change

Calculate percentages for tips, discounts, sales tax, and percent change. Five modes: find percent of number, percent change, add or subtract percentage.

✓ Formula verified: May 2026

Percentage

Results below

Enter Values

15% of 200
30

Remaining amount

170

What if your first value changes? 13.5 → 27 · 15 → 30 · 16.5 → 33

Scenario Comparison

Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Percentage Visual
15%
30of 200

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