-7.22% is the change from 665 to 617
Calculation steps:
[( 617 - 665 ) ÷ 665] x 100 = -7.22%
Formula
Percentage change = [(617 - 665) / 665] x 100
Subtract the new number by the original number
617 - 665 = -48
-48 ÷ 665 = -0.07218045112781955
-0.07218045112781955 x 100 = -7.22%