7.62% is the change from 420 to 452
Calculation steps:
[( 452 - 420 ) ÷ 420] x 100 = 7.62%
Formula
Percentage change = [(452 - 420) / 420] x 100
Subtract the new number by the original number
452 - 420 = 32
32 ÷ 420 = 0.0761904761904762
0.0761904761904762 x 100 = 7.62%