Help constructing a formula

[Marvo]

So I have the five figures

A1 = 149
A2 = 46
A3 = 23
A4 = 13
A5 = 16

I want to add A2 + A3 = (69)
I then want to multiply that result by 3 = (207)
that is added to A4 + A5 = 236
Divide that by A1 = 1.583892617449664
The result shown as a percentage of 3 = 52.79%

I can do that in parts
Part 1 =SUM(A2+A3)*3+A4+A5 (Result 236)
Part 2 =the above result divided by A1
Part 3 the above divided by 3 to give a percentage.

but how do I construct this into just one formula please? I've tried, can't get it to give me the correct result.

Many thanks.

 

[FormR]

Hi, like this maybe>

Book1
	A
1	149
2	46
3	23
4	13
5	16
6
7	52.796%
Sheet1

Cell Formulas
Range	Formula
A7	A7	=(((A2+A3)*3)+A4+A5)/A1/3

 

[Marvo]

Thank you.