Stochastic indicator return values

Hi

Apologies if a solution has been posted elsewhere, grateful if anyone could point me in the right direction. (Also 

The problem encountered is that I'm trying to extract the values for an indicator, the stochastic oscillator in this instance. However the values returned are outside of the expected 0 to 100 range. The indicator when loaded on the chart however does seem to calculate the right values.

Pertinent bits of code below, however please let me know if I should post more.

1) The values for the Stochastic indicator are retrieved via CopyBuffer() per documentation. In this case, the handles are retrieved via iCustom() earlier 

        double array_0[];
        ArraySetAsSeries(array_0, true);
        CopyBuffer(indicator_list[2].indicator_handle, 0, 0, 3, array_0);
        double Sto_Main = array_0[0];
        
        double array_1[];
        ArraySetAsSeries(array_1, true);
        CopyBuffer(indicator_list[2].indicator_handle, 1, 0, 3, array_1);
        double Sto_Sig = array_1[0];
        
        Print("Indicator: ", indicator_list[2].indicator_name);
        Print("Indicator handle: ", indicator_list[2].indicator_handle);
        PrintFormat("Sto_Main: %d, Sto_Sig: %d", Sto_Main, Sto_Sig);
        

2020.04.20 19:02:42.555 2020.04.03 04:58:00   Indicator: Stochastic

2020.04.20 19:02:42.555 2020.04.03 04:58:00   Indicator handle: 12

2020.04.20 19:02:42.555 2020.04.03 04:58:00   Sto_Main: 311222032, Sto_Sig: -165991175

1a) The output values for the Main Line and Signal Line are some huge numbers above.

2) To double check if there wasn't any other issues/errors with referencing the right function, handle, etc, I also retrieved the values via iStochastic()

        int new_handle = iStochastic(_Symbol, _Period, 5, 3, 3, MODE_SMA, STO_LOWHIGH);
        
        ArrayFree(array_0);
        ArraySetAsSeries(array_0, true);
        CopyBuffer(new_handle, 0, 0, 3, array_0);
        Sto_Main = array_0[0];
        
        ArrayFree(array_1);
        ArraySetAsSeries(array_1, true);
        CopyBuffer(new_handle, 1, 0, 3, array_1);
        Sto_Sig = array_1[0];
        
        Print("New Indicator handle: ", new_handle);
        PrintFormat("Sto_Main: %d, Sto_Sig: %d", Sto_Main, Sto_Sig);

2a) Which gave this result - same big numbers but is indeed outputting a value.

2020.04.20 19:02:42.555 2020.04.03 04:58:00   New Indicator handle: 34

2020.04.20 19:02:42.555 2020.04.03 04:58:00   Sto_Main: 311222032, Sto_Sig: -165991100