56.84% is the change from 512 to 803
Calculation steps:
[( 803 - 512 ) ÷ 512] x 100 = 56.84%
Formula
Percentage change = [(803 - 512) / 512] x 100
Subtract the new number by the original number
803 - 512 = 291
291 ÷ 512 = 0.568359375
0.568359375 x 100 = 56.84%