-80.09% is the change from 849 to 169
Calculation steps:
[( 169 - 849 ) ÷ 849] x 100 = -80.09%
Formula
Percentage change = [(169 - 849) / 849] x 100
Subtract the new number by the original number
169 - 849 = -680
-680 ÷ 849 = -0.800942285041225
-0.800942285041225 x 100 = -80.09%