-13.92% is the change from 747 to 643
Calculation steps:
[( 643 - 747 ) ÷ 747] x 100 = -13.92%
Formula
Percentage change = [(643 - 747) / 747] x 100
Subtract the new number by the original number
643 - 747 = -104
-104 ÷ 747 = -0.1392235609103079
-0.1392235609103079 x 100 = -13.92%