1.59% is the change from 503 to 511
Calculation steps:
[( 511 - 503 ) ÷ 503] x 100 = 1.59%
Formula
Percentage change = [(511 - 503) / 503] x 100
Subtract the new number by the original number
511 - 503 = 8
8 ÷ 503 = 0.015904572564612324
0.015904572564612324 x 100 = 1.59%