83.51% is the change from 285 to 523
Calculation steps:
[( 523 - 285 ) ÷ 285] x 100 = 83.51%
Formula
Percentage change = [(523 - 285) / 285] x 100
Subtract the new number by the original number
523 - 285 = 238
238 ÷ 285 = 0.8350877192982457
0.8350877192982457 x 100 = 83.51%