-30.43% is the change from 989 to 688
Calculation steps:
[( 688 - 989 ) ÷ 989] x 100 = -30.43%
Formula
Percentage change = [(688 - 989) / 989] x 100
Subtract the new number by the original number
688 - 989 = -301
-301 ÷ 989 = -0.30434782608695654
-0.30434782608695654 x 100 = -30.43%