808% is the change from 50 to 454
Calculation steps:
[( 454 - 50 ) ÷ 50] x 100 = 808%
Formula
Percentage change = [(454 - 50) / 50] x 100
Subtract the new number by the original number
454 - 50 = 404
404 ÷ 50 = 8.08
8.08 x 100 = 808%
Example