102.3% is the change from 434 to 878
Calculation steps:
[( 878 - 434 ) ÷ 434] x 100 = 102.3%
Formula
Percentage change = [(878 - 434) / 434] x 100
Subtract the new number by the original number
878 - 434 = 444
444 ÷ 434 = 1.023041474654378
1.023041474654378 x 100 = 102.3%