0.8% is the change from 503 to 507
Calculation steps:
[( 507 - 503 ) ÷ 503] x 100 = 0.8%
Formula
Percentage change = [(507 - 503) / 503] x 100
Subtract the new number by the original number
507 - 503 = 4
4 ÷ 503 = 0.007952286282306162
0.007952286282306162 x 100 = 0.8%