50.75% is the change from 335 to 505
Calculation steps:
[( 505 - 335 ) ÷ 335] x 100 = 50.75%
Formula
Percentage change = [(505 - 335) / 335] x 100
Subtract the new number by the original number
505 - 335 = 170
170 ÷ 335 = 0.5074626865671642
0.5074626865671642 x 100 = 50.75%