40 is 10% of 400
Calculation steps:
40 ÷ ( 10 ÷ 100 ) = 400
Formula
40 ÷ ( 10 ÷ 100 )
Percent to decimal
10 ÷ 100 = 0.1
40 ÷ 0.1 = 400 So 40 is 10% of 400
Example