57.14% is the change from 511 to 803
Calculation steps:
[( 803 - 511 ) ÷ 511] x 100 = 57.14%
Formula
Percentage change = [(803 - 511) / 511] x 100
Subtract the new number by the original number
803 - 511 = 292
292 ÷ 511 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%