1% is the change from 501 to 506
Calculation steps:
[( 506 - 501 ) ÷ 501] x 100 = 1%
Formula
Percentage change = [(506 - 501) / 501] x 100
Subtract the new number by the original number
506 - 501 = 5
5 ÷ 501 = 0.00998003992015968
0.00998003992015968 x 100 = 1%