28.3% is the change from 477 to 612
Calculation steps:
[( 612 - 477 ) ÷ 477] x 100 = 28.3%
Formula
Percentage change = [(612 - 477) / 477] x 100
Subtract the new number by the original number
612 - 477 = 135
135 ÷ 477 = 0.2830188679245283
0.2830188679245283 x 100 = 28.3%