Complex sentence: In early October 2017, Prime Minister Trudeau announced that the proposed federal excise tax, to be shared 50/50 with the provinces, was $1 per gram on sales up to $10 and 10% on sales of a larger amount.
Split into simpler sentences: In early October 2017, Prime Minister Trudeau announced a plan to levy a federal excise tax, to be shared 50/50 with the provinces. The tax would be $1 per gram on sales up to $10 and 10% on sales of a larger amount.