-12.24% is the change from 670 to 588
Calculation steps:
[( 588 - 670 ) ÷ 670] x 100 = -12.24%
Formula
Percentage change = [(588 - 670) / 670] x 100
Subtract the new number by the original number
588 - 670 = -82
-82 ÷ 670 = -0.12238805970149254
-0.12238805970149254 x 100 = -12.24%