87.37% is the change from 285 to 534
Calculation steps:
[( 534 - 285 ) ÷ 285] x 100 = 87.37%
Formula
Percentage change = [(534 - 285) / 285] x 100
Subtract the new number by the original number
534 - 285 = 249
249 ÷ 285 = 0.8736842105263158
0.8736842105263158 x 100 = 87.37%