27.61% is the change from 507 to 647
Calculation steps:
[( 647 - 507 ) ÷ 507] x 100 = 27.61%
Formula
Percentage change = [(647 - 507) / 507] x 100
Subtract the new number by the original number
647 - 507 = 140
140 ÷ 507 = 0.27613412228796846
0.27613412228796846 x 100 = 27.61%