Hi, on esource it says the folowing
potato, mashed (plain) 1 60g scoop = 1 propoint
potato, jacket (weighed when cooked), 1 medium 225g each = 8 propoints (something to to with the nutrients changing when it is cooked)
potatos, old, raw, 1 50g portion = 1 propoint
pasta, white, dried, 1 60g...