11.09% is the change from 451 to 501
Calculation steps:
[( 501 - 451 ) ÷ 451] x 100 = 11.09%
Formula
Percentage change = [(501 - 451) / 451] x 100
Subtract the new number by the original number
501 - 451 = 50
50 ÷ 451 = 0.11086474501108648
0.11086474501108648 x 100 = 11.09%