50% is the change from 578 to 867
Calculation steps:
[( 867 - 578 ) ÷ 578] x 100 = 50%
Formula
Percentage change = [(867 - 578) / 578] x 100
Subtract the new number by the original number
867 - 578 = 289
289 ÷ 578 = 0.5
0.5 x 100 = 50%
Example