Okay, so come March 31st, permanent stamps bought by the roll or booklet will be .85 cents each. If I buy them individually, they will be $1 each.
I use multiple stamps / discount postage to mail packages. Say, for example I want to make up postage to equal a small packet rate. Would I calculate how many Permanent stamps to use on the assumption that each one is worth .85 cents or that each one is worth $1 ?