Salts CaSO4 2.4g, CaCl2 5.0g, pinch MgSO4, 0.3g kmeta.
Based on boiling 7.10 gallonsliters at 1.050 for 30 minutes, this will decrease your wort by 0.50 gallonsliters, bringing your after boil OG to 1.054. You wanted an OG of 1.055. It looks like it will be under.