70.18% is the change from 285 to 485
Calculation steps:
[( 485 - 285 ) ÷ 285] x 100 = 70.18%
Formula
Percentage change = [(485 - 285) / 285] x 100
Subtract the new number by the original number
485 - 285 = 200
200 ÷ 285 = 0.7017543859649122
0.7017543859649122 x 100 = 70.18%