385.71% is the change from 7 to 34
Calculation steps:
[( 34 - 7 ) ÷ 7] x 100 = 385.71%
Formula
Percentage change = [(34 - 7) / 7] x 100
Subtract the new number by the original number
34 - 7 = 27
27 ÷ 7 = 3.857142857142857
3.857142857142857 x 100 = 385.71%