-15.53% is the change from 979 to 827
Calculation steps:
[( 827 - 979 ) ÷ 979] x 100 = -15.53%
Formula
Percentage change = [(827 - 979) / 979] x 100
Subtract the new number by the original number
827 - 979 = -152
-152 ÷ 979 = -0.15526046986721145
-0.15526046986721145 x 100 = -15.53%