-81.71% is the change from 853 to 156
Calculation steps:
[( 156 - 853 ) ÷ 853] x 100 = -81.71%
Formula
Percentage change = [(156 - 853) / 853] x 100
Subtract the new number by the original number
156 - 853 = -697
-697 ÷ 853 = -0.8171160609613131
-0.8171160609613131 x 100 = -81.71%