-20.27% is the change from 977 to 779
Calculation steps:
[( 779 - 977 ) ÷ 977] x 100 = -20.27%
Formula
Percentage change = [(779 - 977) / 977] x 100
Subtract the new number by the original number
779 - 977 = -198
-198 ÷ 977 = -0.20266120777891505
-0.20266120777891505 x 100 = -20.27%