411.94% is the change from 67 to 343
Calculation steps:
[( 343 - 67 ) ÷ 67] x 100 = 411.94%
Formula
Percentage change = [(343 - 67) / 67] x 100
Subtract the new number by the original number
343 - 67 = 276
276 ÷ 67 = 4.119402985074627
4.119402985074627 x 100 = 411.94%