Explain our MMP voting system (Mixed Member Proportional)

The voting system for new zealand is called the MMP (Mixed Member Proportional)
MMP is the system that we currently use to elect our parliament. Each voter gets two votes one for the political party and the other vote is for voting a local Mp. each time people vote for a party they will get a percentage if they are below 5% they will not get any seats but they can join a different party to go above 5% or the national or labour can talk to the smaller parties and they can join together to go above 60% they can call them self the government.