42.14% is the change from 579 to 823
Calculation steps:
[( 823 - 579 ) ÷ 579] x 100 = 42.14%
Formula
Percentage change = [(823 - 579) / 579] x 100
Subtract the new number by the original number
823 - 579 = 244
244 ÷ 579 = 0.4214162348877375
0.4214162348877375 x 100 = 42.14%