407.46% is the change from 67 to 340
Calculation steps:
[( 340 - 67 ) ÷ 67] x 100 = 407.46%
Formula
Percentage change = [(340 - 67) / 67] x 100
Subtract the new number by the original number
340 - 67 = 273
273 ÷ 67 = 4.074626865671642
4.074626865671642 x 100 = 407.46%