-8.22% is the change from 730 to 670
Calculation steps:
[( 670 - 730 ) ÷ 730] x 100 = -8.22%
Formula
Percentage change = [(670 - 730) / 730] x 100
Subtract the new number by the original number
670 - 730 = -60
-60 ÷ 730 = -0.0821917808219178
-0.0821917808219178 x 100 = -8.22%