58.98% is the change from 512 to 814
Calculation steps:
[( 814 - 512 ) ÷ 512] x 100 = 58.98%
Formula
Percentage change = [(814 - 512) / 512] x 100
Subtract the new number by the original number
814 - 512 = 302
302 ÷ 512 = 0.58984375
0.58984375 x 100 = 58.98%