-16.55% is the change from 979 to 817
Calculation steps:
[( 817 - 979 ) ÷ 979] x 100 = -16.55%
Formula
Percentage change = [(817 - 979) / 979] x 100
Subtract the new number by the original number
817 - 979 = -162
-162 ÷ 979 = -0.16547497446373852
-0.16547497446373852 x 100 = -16.55%