-94.3% is the change from 859 to 49
Calculation steps:
[( 49 - 859 ) ÷ 859] x 100 = -94.3%
Formula
Percentage change = [(49 - 859) / 859] x 100
Subtract the new number by the original number
49 - 859 = -810
-810 ÷ 859 = -0.9429569266589057
-0.9429569266589057 x 100 = -94.3%