-56.43% is the change from 280 to 122
Calculation steps:
[( 122 - 280 ) ÷ 280] x 100 = -56.43%
Formula
Percentage change = [(122 - 280) / 280] x 100
Subtract the new number by the original number
122 - 280 = -158
-158 ÷ 280 = -0.5642857142857143
-0.5642857142857143 x 100 = -56.43%