-67.48% is the change from 815 to 265
Calculation steps:
[( 265 - 815 ) ÷ 815] x 100 = -67.48%
Formula
Percentage change = [(265 - 815) / 815] x 100
Subtract the new number by the original number
265 - 815 = -550
-550 ÷ 815 = -0.6748466257668712
-0.6748466257668712 x 100 = -67.48%