51.3% is the change from 577 to 873
Calculation steps:
[( 873 - 577 ) ÷ 577] x 100 = 51.3%
Formula
Percentage change = [(873 - 577) / 577] x 100
Subtract the new number by the original number
873 - 577 = 296
296 ÷ 577 = 0.512998266897747
0.512998266897747 x 100 = 51.3%