-57.48% is the change from 602 to 256
Calculation steps:
[( 256 - 602 ) ÷ 602] x 100 = -57.48%
Formula
Percentage change = [(256 - 602) / 602] x 100
Subtract the new number by the original number
256 - 602 = -346
-346 ÷ 602 = -0.574750830564784
-0.574750830564784 x 100 = -57.48%