15.86% is the change from 643 to 745
Calculation steps:
[( 745 - 643 ) ÷ 643] x 100 = 15.86%
Formula
Percentage change = [(745 - 643) / 643] x 100
Subtract the new number by the original number
745 - 643 = 102
102 ÷ 643 = 0.15863141524105753
0.15863141524105753 x 100 = 15.86%