6.65% is the change from 647 to 690
Calculation steps:
[( 690 - 647 ) ÷ 647] x 100 = 6.65%
Formula
Percentage change = [(690 - 647) / 647] x 100
Subtract the new number by the original number
690 - 647 = 43
43 ÷ 647 = 0.06646058732612056
0.06646058732612056 x 100 = 6.65%