-13.2% is the change from 773 to 671
Calculation steps:
[( 671 - 773 ) ÷ 773] x 100 = -13.2%
Formula
Percentage change = [(671 - 773) / 773] x 100
Subtract the new number by the original number
671 - 773 = -102
-102 ÷ 773 = -0.13195342820181113
-0.13195342820181113 x 100 = -13.2%