-30.84% is the change from 428 to 296
Calculation steps:
[( 296 - 428 ) ÷ 428] x 100 = -30.84%
Formula
Percentage change = [(296 - 428) / 428] x 100
Subtract the new number by the original number
296 - 428 = -132
-132 ÷ 428 = -0.308411214953271
-0.308411214953271 x 100 = -30.84%