-21.15% is the change from 988 to 779
Calculation steps:
[( 779 - 988 ) ÷ 988] x 100 = -21.15%
Formula
Percentage change = [(779 - 988) / 988] x 100
Subtract the new number by the original number
779 - 988 = -209
-209 ÷ 988 = -0.21153846153846154
-0.21153846153846154 x 100 = -21.15%