-20.1% is the change from 975 to 779
Calculation steps:
[( 779 - 975 ) ÷ 975] x 100 = -20.1%
Formula
Percentage change = [(779 - 975) / 975] x 100
Subtract the new number by the original number
779 - 975 = -196
-196 ÷ 975 = -0.20102564102564102
-0.20102564102564102 x 100 = -20.1%