-31.31% is the change from 428 to 294
Calculation steps:
[( 294 - 428 ) ÷ 428] x 100 = -31.31%
Formula
Percentage change = [(294 - 428) / 428] x 100
Subtract the new number by the original number
294 - 428 = -134
-134 ÷ 428 = -0.3130841121495327
-0.3130841121495327 x 100 = -31.31%