18.46% is the change from 428 to 507
Calculation steps:
[( 507 - 428 ) ÷ 428] x 100 = 18.46%
Formula
Percentage change = [(507 - 428) / 428] x 100
Subtract the new number by the original number
507 - 428 = 79
79 ÷ 428 = 0.18457943925233644
0.18457943925233644 x 100 = 18.46%