-6.47% is the change from 773 to 723
Calculation steps:
[( 723 - 773 ) ÷ 773] x 100 = -6.47%
Formula
Percentage change = [(723 - 773) / 773] x 100
Subtract the new number by the original number
723 - 773 = -50
-50 ÷ 773 = -0.0646830530401035
-0.0646830530401035 x 100 = -6.47%