-73.25% is the change from 957 to 256
Calculation steps:
[( 256 - 957 ) ÷ 957] x 100 = -73.25%
Formula
Percentage change = [(256 - 957) / 957] x 100
Subtract the new number by the original number
256 - 957 = -701
-701 ÷ 957 = -0.7324973876698014
-0.7324973876698014 x 100 = -73.25%