-79.44% is the change from 827 to 170
Calculation steps:
[( 170 - 827 ) ÷ 827] x 100 = -79.44%
Formula
Percentage change = [(170 - 827) / 827] x 100
Subtract the new number by the original number
170 - 827 = -657
-657 ÷ 827 = -0.7944377267230955
-0.7944377267230955 x 100 = -79.44%