0.99% is the change from 506 to 511
Calculation steps:
[( 511 - 506 ) ÷ 506] x 100 = 0.99%
Formula
Percentage change = [(511 - 506) / 506] x 100
Subtract the new number by the original number
511 - 506 = 5
5 ÷ 506 = 0.009881422924901186
0.009881422924901186 x 100 = 0.99%