-7.33% is the change from 723 to 670
Calculation steps:
[( 670 - 723 ) ÷ 723] x 100 = -7.33%
Formula
Percentage change = [(670 - 723) / 723] x 100
Subtract the new number by the original number
670 - 723 = -53
-53 ÷ 723 = -0.07330567081604426
-0.07330567081604426 x 100 = -7.33%