-66.32% is the change from 668 to 225
Calculation steps:
[( 225 - 668 ) ÷ 668] x 100 = -66.32%
Formula
Percentage change = [(225 - 668) / 668] x 100
Subtract the new number by the original number
225 - 668 = -443
-443 ÷ 668 = -0.6631736526946108
-0.6631736526946108 x 100 = -66.32%