-29.52% is the change from 420 to 296
Calculation steps:
[( 296 - 420 ) ÷ 420] x 100 = -29.52%
Formula
Percentage change = [(296 - 420) / 420] x 100
Subtract the new number by the original number
296 - 420 = -124
-124 ÷ 420 = -0.29523809523809524
-0.29523809523809524 x 100 = -29.52%