Trend Model Initial calculations

Hi Experts,

Strategy 21 - I used in the forecast profile But the calculation of the 'Initial' periods are wrong as per the SAP given formulas.

Could you please let me know how the values are calculating in the below chart. SAP is calculating differently and it is not considering the model INITIAL formulas.

These are the formulas SAP has given for the INITIAL period calculation. As per these below formulas the TREND and Basic Values are wrong in the above screen which I marked in Red. Please some can give me the clarity in this regards.