17.8% is the change from 427 to 503
Calculation steps:
[( 503 - 427 ) ÷ 427] x 100 = 17.8%
Formula
Percentage change = [(503 - 427) / 427] x 100
Subtract the new number by the original number
503 - 427 = 76
76 ÷ 427 = 0.17798594847775176
0.17798594847775176 x 100 = 17.8%