For fun, this is what you get when you input the party percentage changes from the G&D by-election to the electoralcalculus election prediction generator ... 🟢 Grn: 287 ➡️ Ref: 262 🟠 Lib: 43 🟡 SNP: 36 ⏺️ PC: 4 🔴 Lab: 0 🔵 Con: 0 (Northern Ireland not shown, but they get their usual 18 seats)