Does Not Compute

Apparently I miscalculated how much yarn I would need to finish my 1912 vest. I thought it was 60% complete after the first ball of yarn, but I must have goofed on calculating the number of rows after the dart because the second ball ran out with about 3" to go. I'll have to find that partial ball from my 1907 sweater, but I don't recall it being very big.

I do not want to order more yarn so if it's not enough, it's going to be set aside until I'm ordering yarn for something else.

Maybe. I might not be able to abandon it indefinitely; I hate UFO's!