-31.05% is the change from 918 to 633
Calculation steps:
[( 633 - 918 ) ÷ 918] x 100 = -31.05%
Formula
Percentage change = [(633 - 918) / 918] x 100
Subtract the new number by the original number
633 - 918 = -285
-285 ÷ 918 = -0.3104575163398693
-0.3104575163398693 x 100 = -31.05%