121.9% is the change from 420 to 932
Calculation steps:
[( 932 - 420 ) ÷ 420] x 100 = 121.9%
Formula
Percentage change = [(932 - 420) / 420] x 100
Subtract the new number by the original number
932 - 420 = 512
512 ÷ 420 = 1.2190476190476192
1.2190476190476192 x 100 = 121.9%