Three proposals, three totals, and no way to tell which one is complete. The four line items where restoration bids actually differ.
A board rarely rejects the right contractor on purpose. It rejects the proposal that looks expensive because it is the only one that priced the whole scope.
1. Waterproofing and coatings
Ask each bidder which coating system, how many mils, and over how many square feet. A bid that says 'traffic coating as needed' is a bid with a hole in it.
2. Supervision
A superintendent on site full time is a line item. If one proposal has it and two do not, the totals are not comparable.
3. Hidden-condition allowance
Concrete repair quantities are never exact before demolition. A proposal with a stated allowance and unit rates is more predictable than one with a single lump sum.
4. Unit rates
Compare price per square foot of spall repair, per linear foot of slab edge, per column. This is the only number that survives a change in quantity.
Put the three side by side on those four items. In most cases the ranking changes, and the minutes have a defensible reason for the decision.