15.99% is the change from 644 to 747
Calculation steps:
[( 747 - 644 ) ÷ 644] x 100 = 15.99%
Formula
Percentage change = [(747 - 644) / 644] x 100
Subtract the new number by the original number
747 - 644 = 103
103 ÷ 644 = 0.15993788819875776
0.15993788819875776 x 100 = 15.99%