-7.86% is the change from 280 to 258
Calculation steps:
[( 258 - 280 ) ÷ 280] x 100 = -7.86%
Formula
Percentage change = [(258 - 280) / 280] x 100
Subtract the new number by the original number
258 - 280 = -22
-22 ÷ 280 = -0.07857142857142857
-0.07857142857142857 x 100 = -7.86%