18.27% is the change from 427 to 505
Calculation steps:
[( 505 - 427 ) ÷ 427] x 100 = 18.27%
Formula
Percentage change = [(505 - 427) / 427] x 100
Subtract the new number by the original number
505 - 427 = 78
78 ÷ 427 = 0.18266978922716628
0.18266978922716628 x 100 = 18.27%