381.69% is the change from 71 to 342
Calculation steps:
[( 342 - 71 ) ÷ 71] x 100 = 381.69%
Formula
Percentage change = [(342 - 71) / 71] x 100
Subtract the new number by the original number
342 - 71 = 271
271 ÷ 71 = 3.816901408450704
3.816901408450704 x 100 = 381.69%