800% is the change from 51 to 459
Calculation steps:
[( 459 - 51 ) ÷ 51] x 100 = 800%
Formula
Percentage change = [(459 - 51) / 51] x 100
Subtract the new number by the original number
459 - 51 = 408
408 ÷ 51 = 8
8 x 100 = 800%
Example