Premium topic
Percentages
Convert between %, decimals and fractions. Compute percent of a number, percent change, discounts and sales tax — the math behind every receipt.
Worked Example
18% tip on $54
Given: Bill = $54
- 1
Convert to decimal
18% = 0.18
Worked Example
Percent change 80 → 96
Given: Old = 80, new = 96
- 1
Difference
96 − 80 = 16
Timed Game · 6 problems
02:00
Answer 6 problems in 2 min. Timer auto-stops.