Please refer to the image as it contains the info to answer all parts of the question:$)$ will thumbs up for answers to all questions and work is appreciated $,$ thank you!

Pt $1)$ what is last years margin

Pt $2)$ what is last years turnover

Pt $3)$ what is last years return on investment $($ROI$)?$

Pt $4)$ what is the margin related to this years investment opportunity?