-6.1% is the change from 770 to 723
Calculation steps:
[( 723 - 770 ) ÷ 770] x 100 = -6.1%
Formula
Percentage change = [(723 - 770) / 770] x 100
Subtract the new number by the original number
723 - 770 = -47
-47 ÷ 770 = -0.06103896103896104
-0.06103896103896104 x 100 = -6.1%