The price for a normal studentlunch is 2,95€ (student's part) + 2,55€ (KELA's part) = 5,50€.
According to KELA the price for VAT liable lunches (staff lunch) should be at least 10% higher than the student price (=6,05€).
More information: https://www.kela.fi/web/en/meal-subsidy.