-82.21% is the change from 849 to 151
Calculation steps:
[( 151 - 849 ) ÷ 849] x 100 = -82.21%
Formula
Percentage change = [(151 - 849) / 849] x 100
Subtract the new number by the original number
151 - 849 = -698
-698 ÷ 849 = -0.8221436984687868
-0.8221436984687868 x 100 = -82.21%