Paper Calculations

I'm cutting out leaves for my installation in July at artLab. I think it's about time I tallied how much paper I've used so far...

First Paper run: 20 sheets
Second Paper run: 7 sheets
Third Paper run: 12 sheets
Neenah paper sent to my mom: 12 (I think...)

Total as of 3/6/12: 51 sheets of paper.

My best guess? I'll probably need 100 sheets of 40" x 28" paper to have enough leaves.