-80.17% is the change from 827 to 164
Calculation steps:
[( 164 - 827 ) ÷ 827] x 100 = -80.17%
Formula
Percentage change = [(164 - 827) / 827] x 100
Subtract the new number by the original number
164 - 827 = -663
-663 ÷ 827 = -0.8016928657799275
-0.8016928657799275 x 100 = -80.17%