21 is 10% of 210
Calculation steps:
21 ÷ ( 10 ÷ 100 ) = 210
Formula
21 ÷ ( 10 ÷ 100 )
Percent to decimal
10 ÷ 100 = 0.1
21 ÷ 0.1 = 210 So 21 is 10% of 210
Example