-71.58% is the change from 665 to 189
Calculation steps:
[( 189 - 665 ) ÷ 665] x 100 = -71.58%
Formula
Percentage change = [(189 - 665) / 665] x 100
Subtract the new number by the original number
189 - 665 = -476
-476 ÷ 665 = -0.7157894736842105
-0.7157894736842105 x 100 = -71.58%