73% is the change from 500 to 865
Calculation steps:
[( 865 - 500 ) ÷ 500] x 100 = 73%
Formula
Percentage change = [(865 - 500) / 500] x 100
Subtract the new number by the original number
865 - 500 = 365
365 ÷ 500 = 0.73
0.73 x 100 = 73%
Example