848.15% is the change from 54 to 512
Calculation steps:
[( 512 - 54 ) ÷ 54] x 100 = 848.15%
Formula
Percentage change = [(512 - 54) / 54] x 100
Subtract the new number by the original number
512 - 54 = 458
458 ÷ 54 = 8.481481481481481
8.481481481481481 x 100 = 848.15%