After hotfix no change in inca food discount bug

even though there have been a hotfix in the meantime, the known issue of inca food discount not working correclty has not changed. the changed food discount doesnt work as intended. for example in imperial now the eagle costs 20 food for inca. this is applied wrong since 25% of 25 is 6.25. the bonus is not working correctly the eagle should cost 18.75 not 20. in castle age they should cost 20 instead of 21 since 20% of 25 is exactly 5.