Standard Costing Re org- Mid month

Experts ,

We rolled annual cost and 10 days after we realized our annual cost roll is wrong which has wrong OH and LAB cost.

Now we have already thousands of production orders and most of them settled and variance calculated

what is the impact if I re org and roll the cost again?

what is the impact to COGS account

What if I wait 2 days and roll the cost in next period?

Please suggest some best practices

Thanks

Prasad