-80.42% is the change from 817 to 160
Calculation steps:
[( 160 - 817 ) ÷ 817] x 100 = -80.42%
Formula
Percentage change = [(160 - 817) / 817] x 100
Subtract the new number by the original number
160 - 817 = -657
-657 ÷ 817 = -0.8041615667074663
-0.8041615667074663 x 100 = -80.42%