Prediction model doesnot show the exact prediction value

I have created a prediction model to predict the cost every month. but when I create the prediction model it provides a value of something with decimal value like ( 0.23) this but not the full cost prediction value.
Would like to know, is this normal behaviour or is there a way to get a prediction value .

below attaching the screenshot
image

Can anyone in the community , please help on this issue…