-17.9% is the change from 989 to 812
Calculation steps:
[( 812 - 989 ) ÷ 989] x 100 = -17.9%
Formula
Percentage change = [(812 - 989) / 989] x 100
Subtract the new number by the original number
812 - 989 = -177
-177 ÷ 989 = -0.1789686552072801
-0.1789686552072801 x 100 = -17.9%