217.61% is the change from 142 to 451
Calculation steps:
[( 451 - 142 ) ÷ 142] x 100 = 217.61%
Formula
Percentage change = [(451 - 142) / 142] x 100
Subtract the new number by the original number
451 - 142 = 309
309 ÷ 142 = 2.176056338028169
2.176056338028169 x 100 = 217.61%