90% of 420 equal to 378
Calculation steps:
( 90 ÷ 100 ) x 420 = 378
Formula
(90 ÷ 100) x 420 = 378
Percent to decimal
90% to decimal is 90 ÷ 100 = 0.9
Multiply decimal with the other number
0.9 x 420 = 378
Example