-79.27% is the change from 82 to 17
Calculation steps:
[( 17 - 82 ) ÷ 82] x 100 = -79.27%
Formula
Percentage change = [(17 - 82) / 82] x 100
Subtract the new number by the original number
17 - 82 = -65
-65 ÷ 82 = -0.7926829268292683
-0.7926829268292683 x 100 = -79.27%