6.24% is the change from 481 to 511
Calculation steps:
[( 511 - 481 ) ÷ 481] x 100 = 6.24%
Formula
Percentage change = [(511 - 481) / 481] x 100
Subtract the new number by the original number
511 - 481 = 30
30 ÷ 481 = 0.062370062370062374
0.062370062370062374 x 100 = 6.24%