• Want to manage sales on Mercari, Rakuma, Yahoo Auctions, etc. on paper. • Not good with smartphones or app management, want to organize by handwriting. • Want to grasp profit calculations at a glance. • Want to manage purchases and sales together. • Looking for a simple and easy-to-understand management sheet. Comes in a set of 15 sheets. Not on smartphone, PC, or data, but visible at a glance by handwriting! Visualize at a glance by filling in the pie chart! Please consider it m(_ _)m