-61.42% is the change from 871 to 336
Calculation steps:
[( 336 - 871 ) ÷ 871] x 100 = -61.42%
Formula
Percentage change = [(336 - 871) / 871] x 100
Subtract the new number by the original number
336 - 871 = -535
-535 ÷ 871 = -0.6142365097588978
-0.6142365097588978 x 100 = -61.42%