9.48% is the change from 591 to 647
Calculation steps:
[( 647 - 591 ) ÷ 591] x 100 = 9.48%
Formula
Percentage change = [(647 - 591) / 591] x 100
Subtract the new number by the original number
647 - 591 = 56
56 ÷ 591 = 0.09475465313028765
0.09475465313028765 x 100 = 9.48%