-97.65% is the change from 979 to 23
Calculation steps:
[( 23 - 979 ) ÷ 979] x 100 = -97.65%
Formula
Percentage change = [(23 - 979) / 979] x 100
Subtract the new number by the original number
23 - 979 = -956
-956 ÷ 979 = -0.9765066394279878
-0.9765066394279878 x 100 = -97.65%