102.15% is the change from 279 to 564
Calculation steps:
[( 564 - 279 ) ÷ 279] x 100 = 102.15%
Formula
Percentage change = [(564 - 279) / 279] x 100
Subtract the new number by the original number
564 - 279 = 285
285 ÷ 279 = 1.021505376344086
1.021505376344086 x 100 = 102.15%