-70.84% is the change from 871 to 254
Calculation steps:
[( 254 - 871 ) ÷ 871] x 100 = -70.84%
Formula
Percentage change = [(254 - 871) / 871] x 100
Subtract the new number by the original number
254 - 871 = -617
-617 ÷ 871 = -0.7083811710677382
-0.7083811710677382 x 100 = -70.84%