15.94% is the change from 646 to 749
Calculation steps:
[( 749 - 646 ) ÷ 646] x 100 = 15.94%
Formula
Percentage change = [(749 - 646) / 646] x 100
Subtract the new number by the original number
749 - 646 = 103
103 ÷ 646 = 0.15944272445820434
0.15944272445820434 x 100 = 15.94%