1212.82% is the change from 39 to 512
Calculation steps:
[( 512 - 39 ) ÷ 39] x 100 = 1212.82%
Formula
Percentage change = [(512 - 39) / 39] x 100
Subtract the new number by the original number
512 - 39 = 473
473 ÷ 39 = 12.128205128205128
12.128205128205128 x 100 = 1212.82%