-94.37% is the change from 871 to 49
Calculation steps:
[( 49 - 871 ) ÷ 871] x 100 = -94.37%
Formula
Percentage change = [(49 - 871) / 871] x 100
Subtract the new number by the original number
49 - 871 = -822
-822 ÷ 871 = -0.9437428243398392
-0.9437428243398392 x 100 = -94.37%