Question 17880
The percentage is easily found by dividing amount 2 by amount 1, subtracting 1 and multiplying by 100.  The result is a positive or negative percentage, depending if amount 2 > or < amount 1.  

The specific answer to your question would be:
{[(1804/1613)-1]*100} = {[(1.11841...)-1]*100} = 11.8412895... %