changing indicator

Hello all, I am a beginner with Power BI and Data Analytics in general and I hope to eventually contribute my own solutions to other's issues once I get some experience with this awesome tool. 

Currently, I am building a simple dashboard my boss requested which will show changes to inventory levels day to day. The issue I ran into is the KPI indicator only shows the % change. Since we have about 400k products at any given time a change of 500 is .00125% change. The area chart and to show trend and the clear number is a very nice number but is there a way that I can change the indicator to be just a number. So making the indicator = yesterdayINVBAL-todayINVBAL. The method I am using is having an table on Access be Appended by the inventory balance and a "upload timestamp". \

Thank you for any solution you guys can provide.

Also i have seen some Dax stuff, but I'm not even sure were to apply them to. I have a pretty decent amount of exp with excel, so dax hasn't been too difficult to learn.