34200% is the change from 1 to 343
Calculation steps:
[( 343 - 1 ) ÷ 1] x 100 = 34200%
Formula
Percentage change = [(343 - 1) / 1] x 100
Subtract the new number by the original number
343 - 1 = 342
342 ÷ 1 = 342
342 x 100 = 34200%
Example