-12.09% is the change from 670 to 589
Calculation steps:
[( 589 - 670 ) ÷ 670] x 100 = -12.09%
Formula
Percentage change = [(589 - 670) / 670] x 100
Subtract the new number by the original number
589 - 670 = -81
-81 ÷ 670 = -0.1208955223880597
-0.1208955223880597 x 100 = -12.09%