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Value added tax (VAT)

VAT is an indirect tax. The calculation is made by the seller when selling goods (works, services, property rights) to the buyer.

This model allows us to calculate VAT on any purchases by specifying them as an array of prices.

The model itself is shown in the picture below.

image.png

Next, we will add an auxiliary function of the model and specify the shopping list.

In [ ]: 
# Enabling the auxiliary model launch function.
function run_model( name_model)
    
    Path = (@__DIR__) * "/" * name_model * ".engee"
    
    if name_model in [m.name for m in engee.get_all_models()] # Checking the condition for loading a model into the kernel
        model = engee.open( name_model ) # Open the model
        model_output = engee.run( model, verbose=true ); # Launch the model
    else
        model = engee.load( Path, force=true ) # Upload a model
        model_output = engee.run( model, verbose=true ); # Launch the model
        engee.close( name_model, force=true ); # Close the model
    end
    sleep(5)
    return model_output
end
Out[0]:
run_model (generic function with 1 method)
In [ ]: 
Purchases = [100, 120, 12.55];

Let's run the model and output the calculated tax amount.

In [ ]: 
run_model("NDS") # Launching the model.

Sum = collect(simout["NDS/Amount of purchases"]);
NDS = collect(simout["NDS/VAT on purchases"]);

println("Amount of purchases: " * string(Sum.value))
println("VAT on purchases: " * string(NDS.value))

Building...
Progress 100%
Сумма покупок: Any[232.55]
НДС от покупок: Any[46.510000000000005]

Conclusion

In this example, we have demonstrated the possibilities of using Engee for everyday tasks.

Blocks used in example