-15.94% is the change from 690 to 580
Calculation steps:
[( 580 - 690 ) ÷ 690] x 100 = -15.94%
Formula
Percentage change = [(580 - 690) / 690] x 100
Subtract the new number by the original number
580 - 690 = -110
-110 ÷ 690 = -0.15942028985507245
-0.15942028985507245 x 100 = -15.94%