The USDA said "(Ukraine) agricultural producers estimate their losses at over $1.25bn due to restricted export of grain."And the rest!
If you add the knock on effect of reduced inputs for this next season, the yield reduction as a result, the loss of reputation Ukraine now has as an international grain trader and the number of investors that will now not be investing as a result of the political shenanigans and I reckon the real loss is incalculable.