-21.79% is the change from 918 to 718
Calculation steps:
[( 718 - 918 ) ÷ 918] x 100 = -21.79%
Formula
Percentage change = [(718 - 918) / 918] x 100
Subtract the new number by the original number
718 - 918 = -200
-200 ÷ 918 = -0.2178649237472767
-0.2178649237472767 x 100 = -21.79%