That's how much Holowna went to Ethiopia. We have an answer from the Sejm

The Chancellery of the Sejm for Simon Holownia's November visit to Ethiopia, according to preliminary calculations, paid over PLN 64,000 - said the Chancellery of the Sejm in consequence to questions tvn24.pl. As added, the costs of leaving the then marshal were shared with the ministry of diplomacy. In addition to his parliamentary duties, Holovnia besides met with UN representatives, which had to do with his candidacy for the position of United Nations advanced Commissioner for Refugees.