I am working with a spreadsheet where progress is recorded with shaded moons
(full moon, 3/4 moon, half moon, quarter moon). They have inserted pictures
of these moons, but I am looking for a way to weight the progress and would
like the moon to be tied to a value.

Are their moons as symbols I could use? Can you think of another way to tie
these pictures to a value so they can be used in a formula?

Thanks,