77.62% is the change from 286 to 508
Calculation steps:
[( 508 - 286 ) ÷ 286] x 100 = 77.62%
Formula
Percentage change = [(508 - 286) / 286] x 100
Subtract the new number by the original number
508 - 286 = 222
222 ÷ 286 = 0.7762237762237763
0.7762237762237763 x 100 = 77.62%