Company accidentally puts salary as $850,000 instead of $85,000

I'm no contract lawyer, but does this bind them to pay the employee $850,000?

The contract states that payments are made every fortnight based on the figure listed in Schedule A. Schedule A mentions $850,000 instead of $85,000. At no point was salary verbally discussed. The only reference to it was in the contract, which has been signed by the company, awaiting a signature from the employee.

Supposing the company refused to honour what is in the written contract, what would happen?

Has anyone had this happen? This is quite unusual