21 is 70% of 30
Calculation steps:
21 ÷ ( 70 ÷ 100 ) = 30
Formula
21 ÷ ( 70 ÷ 100 )
Percent to decimal
70 ÷ 100 = 0.7
21 ÷ 0.7 = 30 So 21 is 70% of 30
Example