19.63% is the change from 647 to 774
Calculation steps:
[( 774 - 647 ) ÷ 647] x 100 = 19.63%
Formula
Percentage change = [(774 - 647) / 647] x 100
Subtract the new number by the original number
774 - 647 = 127
127 ÷ 647 = 0.19629057187017002
0.19629057187017002 x 100 = 19.63%