400% is the change from 67 to 335
Calculation steps:
[( 335 - 67 ) ÷ 67] x 100 = 400%
Formula
Percentage change = [(335 - 67) / 67] x 100
Subtract the new number by the original number
335 - 67 = 268
268 ÷ 67 = 4
4 x 100 = 400%
Example