-37.53% is the change from 994 to 621
Calculation steps:
[( 621 - 994 ) ÷ 994] x 100 = -37.53%
Formula
Percentage change = [(621 - 994) / 994] x 100
Subtract the new number by the original number
621 - 994 = -373
-373 ÷ 994 = -0.37525150905432597
-0.37525150905432597 x 100 = -37.53%