49.74% is the change from 577 to 864
Calculation steps:
[( 864 - 577 ) ÷ 577] x 100 = 49.74%
Formula
Percentage change = [(864 - 577) / 577] x 100
Subtract the new number by the original number
864 - 577 = 287
287 ÷ 577 = 0.49740034662045063
0.49740034662045063 x 100 = 49.74%