-72.54% is the change from 936 to 257
Calculation steps:
[( 257 - 936 ) ÷ 936] x 100 = -72.54%
Formula
Percentage change = [(257 - 936) / 936] x 100
Subtract the new number by the original number
257 - 936 = -679
-679 ÷ 936 = -0.7254273504273504
-0.7254273504273504 x 100 = -72.54%