16.61% is the change from 644 to 751
Calculation steps:
[( 751 - 644 ) ÷ 644] x 100 = 16.61%
Formula
Percentage change = [(751 - 644) / 644] x 100
Subtract the new number by the original number
751 - 644 = 107
107 ÷ 644 = 0.16614906832298137
0.16614906832298137 x 100 = 16.61%