-8.53% is the change from 258 to 236
Calculation steps:
[( 236 - 258 ) ÷ 258] x 100 = -8.53%
Formula
Percentage change = [(236 - 258) / 258] x 100
Subtract the new number by the original number
236 - 258 = -22
-22 ÷ 258 = -0.08527131782945736
-0.08527131782945736 x 100 = -8.53%