-27.25% is the change from 888 to 646
Calculation steps:
[( 646 - 888 ) ÷ 888] x 100 = -27.25%
Formula
Percentage change = [(646 - 888) / 888] x 100
Subtract the new number by the original number
646 - 888 = -242
-242 ÷ 888 = -0.2725225225225225
-0.2725225225225225 x 100 = -27.25%