Please help making specific chart

Hi Everyone,

I wanted to create a chart with waterfall effect but i am struggling to do so. I tried fiddling with all the tweaks i know in excel, but its just not working for me.

I also searched the internet and was pointed out to buying some sort of plug in for excel that does it with just a button click, but i am sure there is a way in excel. And i am hoping someone can kindly help me with this.

To find out more of what i am trying to accomplish please open the attached excel file.

Many thanks in advance.