18.08% is the change from 647 to 764
Calculation steps:
[( 764 - 647 ) ÷ 647] x 100 = 18.08%
Formula
Percentage change = [(764 - 647) / 647] x 100
Subtract the new number by the original number
764 - 647 = 117
117 ÷ 647 = 0.18083462132921174
0.18083462132921174 x 100 = 18.08%