-81.07% is the change from 280 to 53
Calculation steps:
[( 53 - 280 ) ÷ 280] x 100 = -81.07%
Formula
Percentage change = [(53 - 280) / 280] x 100
Subtract the new number by the original number
53 - 280 = -227
-227 ÷ 280 = -0.8107142857142857
-0.8107142857142857 x 100 = -81.07%