These visualisations from exclusive polling modelling show how the UK parliament could change under different voting systems
New analysis produced exclusively for the Guardian reveals how different voting systems would return significantly different seat totals in the UK parliament, based on recent polling.
While the current first past the post (FPTP) system could leave Labour short of a majority with 250 seats, the modelling shows how proportional systems would be likely to reduce the number of seats given to the leading party – and give the UK a more finely balanced parliament that better represents the votes people cast.