742.86% is the change from 42 to 354
Calculation steps:
[( 354 - 42 ) ÷ 42] x 100 = 742.86%
Formula
Percentage change = [(354 - 42) / 42] x 100
Subtract the new number by the original number
354 - 42 = 312
312 ÷ 42 = 7.428571428571429
7.428571428571429 x 100 = 742.86%