-9.7% is the change from 742 to 670
Calculation steps:
[( 670 - 742 ) ÷ 742] x 100 = -9.7%
Formula
Percentage change = [(670 - 742) / 742] x 100
Subtract the new number by the original number
670 - 742 = -72
-72 ÷ 742 = -0.09703504043126684
-0.09703504043126684 x 100 = -9.7%