-17.14% is the change from 280 to 232
Calculation steps:
[( 232 - 280 ) ÷ 280] x 100 = -17.14%
Formula
Percentage change = [(232 - 280) / 280] x 100
Subtract the new number by the original number
232 - 280 = -48
-48 ÷ 280 = -0.17142857142857143
-0.17142857142857143 x 100 = -17.14%