838.89% is the change from 54 to 507
Calculation steps:
[( 507 - 54 ) ÷ 54] x 100 = 838.89%
Formula
Percentage change = [(507 - 54) / 54] x 100
Subtract the new number by the original number
507 - 54 = 453
453 ÷ 54 = 8.38888888888889
8.38888888888889 x 100 = 838.89%