25.37% is the change from 335 to 420
Calculation steps:
[( 420 - 335 ) ÷ 335] x 100 = 25.37%
Formula
Percentage change = [(420 - 335) / 335] x 100
Subtract the new number by the original number
420 - 335 = 85
85 ÷ 335 = 0.2537313432835821
0.2537313432835821 x 100 = 25.37%