How to simulate more than one scenario and show in clustered column chart

[nor303]

Hi

I have a challenge that Im struggling to find an easy solution for. Im supposed to show different scenarios based on changes in cost. 

Data looks like this:

Sales	Cost
150	100
170	110
80	78

Im supposed to show in percent Sales/cost. And also show what happens if the cost lets say increases/decreases by 5% or 10% or 15%

In my clustered column chart I want to show for example todays percentage and +-5 and 10% change. So 5 bars in total

Is this possible to without making new columns in power query or is that the most efficient way?

Thanks:)