-11.73% is the change from 665 to 587
Calculation steps:
[( 587 - 665 ) ÷ 665] x 100 = -11.73%
Formula
Percentage change = [(587 - 665) / 665] x 100
Subtract the new number by the original number
587 - 665 = -78
-78 ÷ 665 = -0.11729323308270677
-0.11729323308270677 x 100 = -11.73%