55.61% is the change from 428 to 666
Calculation steps:
[( 666 - 428 ) ÷ 428] x 100 = 55.61%
Formula
Percentage change = [(666 - 428) / 428] x 100
Subtract the new number by the original number
666 - 428 = 238
238 ÷ 428 = 0.5560747663551402
0.5560747663551402 x 100 = 55.61%