-78.65% is the change from 979 to 209
Calculation steps:
[( 209 - 979 ) ÷ 979] x 100 = -78.65%
Formula
Percentage change = [(209 - 979) / 979] x 100
Subtract the new number by the original number
209 - 979 = -770
-770 ÷ 979 = -0.7865168539325843
-0.7865168539325843 x 100 = -78.65%