-40.56% is the change from 429 to 255
Calculation steps:
[( 255 - 429 ) ÷ 429] x 100 = -40.56%
Formula
Percentage change = [(255 - 429) / 429] x 100
Subtract the new number by the original number
255 - 429 = -174
-174 ÷ 429 = -0.40559440559440557
-0.40559440559440557 x 100 = -40.56%