20% is the change from 335 to 402
Calculation steps:
[( 402 - 335 ) ÷ 335] x 100 = 20%
Formula
Percentage change = [(402 - 335) / 335] x 100
Subtract the new number by the original number
402 - 335 = 67
67 ÷ 335 = 0.2
0.2 x 100 = 20%
Example