0.2% is the change from 505 to 506
Calculation steps:
[( 506 - 505 ) ÷ 505] x 100 = 0.2%
Formula
Percentage change = [(506 - 505) / 505] x 100
Subtract the new number by the original number
506 - 505 = 1
1 ÷ 505 = 0.0019801980198019802
0.0019801980198019802 x 100 = 0.2%