-91.42% is the change from 979 to 84
Calculation steps:
[( 84 - 979 ) ÷ 979] x 100 = -91.42%
Formula
Percentage change = [(84 - 979) / 979] x 100
Subtract the new number by the original number
84 - 979 = -895
-895 ÷ 979 = -0.9141981613891726
-0.9141981613891726 x 100 = -91.42%