108.79% is the change from 421 to 879
Calculation steps:
[( 879 - 421 ) ÷ 421] x 100 = 108.79%
Formula
Percentage change = [(879 - 421) / 421] x 100
Subtract the new number by the original number
879 - 421 = 458
458 ÷ 421 = 1.0878859857482186
1.0878859857482186 x 100 = 108.79%