The Scandinavian countries have voting systems that are approximately proportional in the core. Then they use those leveling seats to fix the sub-5% differences

The Scandinavian countries have voting systems that are approximately proportional in the core. Then they use those leveling seats to fix the sub-5% differences in the vote proportions and the seats. But that's just a small correction if we are comparing voting systems that are not proportional in their design at all. https://en.wikipedia.org/wiki/Webster/Sainte-Lagu%C3%AB_method https://en.wikipedia.org/wiki/Webster/Sainte-Lagu%C3%AB_meth... https://en.wikipedia.org/wiki/D%27Hondt_method https://en.wikipedia.org/wiki/D%27Hondt_method