15.09% is the change from 643 to 740
Calculation steps:
[( 740 - 643 ) ÷ 643] x 100 = 15.09%
Formula
Percentage change = [(740 - 643) / 643] x 100
Subtract the new number by the original number
740 - 643 = 97
97 ÷ 643 = 0.15085536547433903
0.15085536547433903 x 100 = 15.09%