Evan Armstrong


Napkin Math

Gross Margin: An Indicator of Market Power

What America's Oldest Jeweler Can Teach Us About the Value of Bling

18 Apr 29, 2021 by Evan Armstrong

Napkin Math

Am I getting ripped off writing at Every?

Screenshots of my contract and the financial model I used to decide

32 🔒 Apr 22, 2021 by Evan Armstrong

Napkin Math

COGS: How I Bankrupted MoviePass

An Intuitive Explainer for How To Lose Money and Win Anyway

83 Apr 15, 2021 by Evan Armstrong

Napkin Math

Announcing Napkin Math Fiscal Year 2021

After a short break, Napkin Math returns with a new writer

14 🔒 Apr 13, 2021 by Evan Armstrong and Adam Keesling

Napkin Math

Revenue: It’s Simple, Until It Isn’t

Finally, a clear explanation of bookings, billings and revenue

118 Feb 5, 2021 by Evan Armstrong