Well I am not sure if I got this right, but what I did was 270 divided by 0.05 (which is 5%) to get 5400, then since I thought that was too big I added a decimal at 54.00, then I add 270+ 54= 324 since it was a 5% markup I added that.
So I think it might be $324.00
I hope that, that helped
