I am trying to display (Price) which is calculated by fetching an object from the database table(fuel_price) and using that object to multiply it with an input and display the results before a button is clicked.
Here is my UI.
1)Label 1 → is the fetched data from database (table:fuel_price) (works fine)
2)label → is the input of litres (works fine)
3)label 3) is the selected fuel type with values diesel & petrol.
4)label 4) is the display of price after calculating the input litres & Price fetched on database from label 1 with respect to selected fuel type in label 3.
And this is my content logic for label 4 (where the price is displayed).
whenever i run the app. i keep getting this (NaN)
Whats wrong with my content logic.??