49.83% is the change from 578 to 866
Calculation steps:
[( 866 - 578 ) ÷ 578] x 100 = 49.83%
Formula
Percentage change = [(866 - 578) / 578] x 100
Subtract the new number by the original number
866 - 578 = 288
288 ÷ 578 = 0.4982698961937716
0.4982698961937716 x 100 = 49.83%