Summary of expenses and income – calculation basis amount is incorrect

Dear Sir/Madam, under the summary of income and expenses, we have the ‘calculation basis’ state. I noticed that my passenger car expenses did not match the invoice amount that was initially entered. Calculation basis amount: €319.93, but the invoice amount excluding vAT is €311.75 and including vAT is €377.22. I have a professional percentage of 40% and a vAT deduction of 35%. I notice that these amounts do not add up to the ‘calculation basis amount’ of €319.93 from the income and expenses summary. Could you please check this? The percentage of those rejected expenses is 24.65%, which is a very strange number that was not entered anywhere.
The same applies to the cost from Vistaprint: 50% rejected expenses? This cannot be correct either.