-72.29% is the change from 924 to 256
Calculation steps:
[( 256 - 924 ) ÷ 924] x 100 = -72.29%
Formula
Percentage change = [(256 - 924) / 924] x 100
Subtract the new number by the original number
256 - 924 = -668
-668 ÷ 924 = -0.7229437229437229
-0.7229437229437229 x 100 = -72.29%