64.18% is the change from 335 to 550
Calculation steps:
[( 550 - 335 ) ÷ 335] x 100 = 64.18%
Formula
Percentage change = [(550 - 335) / 335] x 100
Subtract the new number by the original number
550 - 335 = 215
215 ÷ 335 = 0.6417910447761194
0.6417910447761194 x 100 = 64.18%