173.52% is the change from 321 to 878
Calculation steps:
[( 878 - 321 ) ÷ 321] x 100 = 173.52%
Formula
Percentage change = [(878 - 321) / 321] x 100
Subtract the new number by the original number
878 - 321 = 557
557 ÷ 321 = 1.735202492211838
1.735202492211838 x 100 = 173.52%