16.8% is the change from 643 to 751
Calculation steps:
[( 751 - 643 ) ÷ 643] x 100 = 16.8%
Formula
Percentage change = [(751 - 643) / 643] x 100
Subtract the new number by the original number
751 - 643 = 108
108 ÷ 643 = 0.16796267496111975
0.16796267496111975 x 100 = 16.8%