6.11% is the change from 507 to 538
Calculation steps:
[( 538 - 507 ) ÷ 507] x 100 = 6.11%
Formula
Percentage change = [(538 - 507) / 507] x 100
Subtract the new number by the original number
538 - 507 = 31
31 ÷ 507 = 0.0611439842209073
0.0611439842209073 x 100 = 6.11%