-97.24% is the change from 979 to 27
Calculation steps:
[( 27 - 979 ) ÷ 979] x 100 = -97.24%
Formula
Percentage change = [(27 - 979) / 979] x 100
Subtract the new number by the original number
27 - 979 = -952
-952 ÷ 979 = -0.9724208375893769
-0.9724208375893769 x 100 = -97.24%