-58.93% is the change from 280 to 115
Calculation steps:
[( 115 - 280 ) ÷ 280] x 100 = -58.93%
Formula
Percentage change = [(115 - 280) / 280] x 100
Subtract the new number by the original number
115 - 280 = -165
-165 ÷ 280 = -0.5892857142857143
-0.5892857142857143 x 100 = -58.93%