Formulas examples These sample examples are a small selection. Here we show what an order can look like. We have a variety of solutions for your calculation needs. – Amortization-account Amortisations – Cost of a solar system Kosten für eine Solar – Photovoltaic on flat roof PV_Flachdach – Net Present Value Net_Present_Value – annuity, repayment of a loan Annuität – Save with an insurance Sparversicherung – Investment calculation PV PV_Investitionen-Rendite