93.33% is the change from 285 to 551
Calculation steps:
[( 551 - 285 ) ÷ 285] x 100 = 93.33%
Formula
Percentage change = [(551 - 285) / 285] x 100
Subtract the new number by the original number
551 - 285 = 266
266 ÷ 285 = 0.9333333333333333
0.9333333333333333 x 100 = 93.33%