306.34% is the change from 142 to 577
Calculation steps:
[( 577 - 142 ) ÷ 142] x 100 = 306.34%
Formula
Percentage change = [(577 - 142) / 142] x 100
Subtract the new number by the original number
577 - 142 = 435
435 ÷ 142 = 3.063380281690141
3.063380281690141 x 100 = 306.34%