-32.35% is the change from 918 to 621
Calculation steps:
[( 621 - 918 ) ÷ 918] x 100 = -32.35%
Formula
Percentage change = [(621 - 918) / 918] x 100
Subtract the new number by the original number
621 - 918 = -297
-297 ÷ 918 = -0.3235294117647059
-0.3235294117647059 x 100 = -32.35%