Variable not initialized: The variable 'totalCost' was not initialized. How do I fix this to make the program run.

Psuedocode:

Module main$()$

Declare Real totalCost

Call calculateAlbumCosts$($totalCost$)$

Call displayCostAndBudget$($totalCost$)$

End Module

Module calculateAlbumCosts $($Real totalCost$)$

Declare Real albumCost, totalCost

Declare Integer i

Set totalCost $=0$

Display "Enter the cost of album: $"$

Input albumCost

For i $=1$ To $5$

Set totalCost $=$ totalCost $+$ albumCost

End For

Call displayCostAndBudget$($totalCost$)$

End Module

Module displayCostAndBudget $($Real totalCost$)$

Declare Real totalCost

Display "The total cost is $: $",$ totalCost

If totalCost $<=100$ Then

Display "This is within budget!"

Else

Display "You are over budget!"

End If

End Module