19.67% is the change from 427 to 511
Calculation steps:
[( 511 - 427 ) ÷ 427] x 100 = 19.67%
Formula
Percentage change = [(511 - 427) / 427] x 100
Subtract the new number by the original number
511 - 427 = 84
84 ÷ 427 = 0.19672131147540983
0.19672131147540983 x 100 = 19.67%