How much of margin expansion is due to sales versus cost

Can someone please help me with this question?

2014 sales was $100, 2015 sales was $150, and 2016 sales will be $200 2014 costs was $50, 2015 costs was $70, and 2016 costs were $90 2014 profit was $50, 2015 profit was $80, and 2016 profit was $110

How much of 2016's margin expansion (110-80=30) was due to sales increase versus slower cost increase?

Thank you!

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