-81% is the change from 279 to 53
Calculation steps:
[( 53 - 279 ) ÷ 279] x 100 = -81%
Formula
Percentage change = [(53 - 279) / 279] x 100
Subtract the new number by the original number
53 - 279 = -226
-226 ÷ 279 = -0.8100358422939068
-0.8100358422939068 x 100 = -81%