Proportional representation is simple. The percentage of votes a party receives equals the number of seats in the legislature.
It is used in 80% of OECD countries and delivers legislatures that reflect the popular vote. For example, in 2017 under FPTP the B.C. Greens received 17% of the vote but only 4% of the seats in the B.C. Legislature. Under a system of proportional representation, the B.C. Greens would receive approximately 17% of the seats. Other countries that use proportional representation include New Zealand, Germany and Sweden. In addition to Canada, countries that use FPTP include the United States, the UK and India.