How to convert euros in pounds

i have a spreadsheet with months on and i have added the expenses for each month, and i have cell a1 with the year total (euros) in it, i want to make cell a2 convert in gb pounds, how can i do that please

a2=a1*0.853092444

Originally Posted by Cheeky Charlie

a2=a1*0.853092444

Thanks for that

0.844130 its changed!