-73.15% is the change from 957 to 257
Calculation steps:
[( 257 - 957 ) ÷ 957] x 100 = -73.15%
Formula
Percentage change = [(257 - 957) / 957] x 100
Subtract the new number by the original number
257 - 957 = -700
-700 ÷ 957 = -0.7314524555903866
-0.7314524555903866 x 100 = -73.15%