-79.56% is the change from 817 to 167
Calculation steps:
[( 167 - 817 ) ÷ 817] x 100 = -79.56%
Formula
Percentage change = [(167 - 817) / 817] x 100
Subtract the new number by the original number
167 - 817 = -650
-650 ÷ 817 = -0.795593635250918
-0.795593635250918 x 100 = -79.56%