-4.56% is the change from 702 to 670
Calculation steps:
[( 670 - 702 ) ÷ 702] x 100 = -4.56%
Formula
Percentage change = [(670 - 702) / 702] x 100
Subtract the new number by the original number
670 - 702 = -32
-32 ÷ 702 = -0.045584045584045586
-0.045584045584045586 x 100 = -4.56%