58.2% is the change from 555 to 878
Calculation steps:
[( 878 - 555 ) ÷ 555] x 100 = 58.2%
Formula
Percentage change = [(878 - 555) / 555] x 100
Subtract the new number by the original number
878 - 555 = 323
323 ÷ 555 = 0.581981981981982
0.581981981981982 x 100 = 58.2%