51700% is the change from 1 to 518
Calculation steps:
[( 518 - 1 ) ÷ 1] x 100 = 51700%
Formula
Percentage change = [(518 - 1) / 1] x 100
Subtract the new number by the original number
518 - 1 = 517
517 ÷ 1 = 517
517 x 100 = 51700%
Example