-66.17% is the change from 665 to 225
Calculation steps:
[( 225 - 665 ) ÷ 665] x 100 = -66.17%
Formula
Percentage change = [(225 - 665) / 665] x 100
Subtract the new number by the original number
225 - 665 = -440
-440 ÷ 665 = -0.6616541353383458
-0.6616541353383458 x 100 = -66.17%