-37.21% is the change from 989 to 621
Calculation steps:
[( 621 - 989 ) ÷ 989] x 100 = -37.21%
Formula
Percentage change = [(621 - 989) / 989] x 100
Subtract the new number by the original number
621 - 989 = -368
-368 ÷ 989 = -0.37209302325581395
-0.37209302325581395 x 100 = -37.21%