-72.83% is the change from 946 to 257
Calculation steps:
[( 257 - 946 ) ÷ 946] x 100 = -72.83%
Formula
Percentage change = [(257 - 946) / 946] x 100
Subtract the new number by the original number
257 - 946 = -689
-689 ÷ 946 = -0.7283298097251586
-0.7283298097251586 x 100 = -72.83%