Portfolio percentage in excel?

ok, so ive probably been working on this equation for way too long, this is what i need help with, an equation in excel that will give me a portfolio percentage, i've came up with this:

Portfolio % = Current Value of the Stock / Total Current Value of All Stock held in Portfolio Current Value = Last Price * Number of Shares

these are the numbers i have: 13.49/91041.80= whateve that # is *45. that answer is .006519..... the answer needs to be .67 (%). what am i doing wrong?? any help would help...thanks

=13.49 / 1041.8 * 45 = 0.582

I think you're missing some information.