57.23% is the change from 512 to 805
Calculation steps:
[( 805 - 512 ) ÷ 512] x 100 = 57.23%
Formula
Percentage change = [(805 - 512) / 512] x 100
Subtract the new number by the original number
805 - 512 = 293
293 ÷ 512 = 0.572265625
0.572265625 x 100 = 57.23%