-68.96% is the change from 815 to 253
Calculation steps:
[( 253 - 815 ) ÷ 815] x 100 = -68.96%
Formula
Percentage change = [(253 - 815) / 815] x 100
Subtract the new number by the original number
253 - 815 = -562
-562 ÷ 815 = -0.6895705521472393
-0.6895705521472393 x 100 = -68.96%