-25.05% is the change from 918 to 688
Calculation steps:
[( 688 - 918 ) ÷ 918] x 100 = -25.05%
Formula
Percentage change = [(688 - 918) / 918] x 100
Subtract the new number by the original number
688 - 918 = -230
-230 ÷ 918 = -0.25054466230936817
-0.25054466230936817 x 100 = -25.05%