-16.28% is the change from 989 to 828
Calculation steps:
[( 828 - 989 ) ÷ 989] x 100 = -16.28%
Formula
Percentage change = [(828 - 989) / 989] x 100
Subtract the new number by the original number
828 - 989 = -161
-161 ÷ 989 = -0.16279069767441862
-0.16279069767441862 x 100 = -16.28%