Not calculating correctly

I am in canada
First it dies not display what you want, i selected to l/ 100km and only gave the ?/l and total liters
With the first entry, stats do not calculate
With 2 entry it tried calculating the l/100 km and made a math error of a factor of 10
The app could be nice but needs to be fixed

ve2gsm about Road Trip MPG Lite, v1.8