LP130 Reload balances

unknown

We had an employee who mistakenly 0'd out the available balances for a structure group. Can anyone tell me if there is a way to upload the balances back without affecting the ending balance? 

As a test i updated the balance before it was zeroed but now the available balance another 4 hours in LP62.4 although it shows the correct value in lp31 and lp64 after the query below...

UPDATE TAEEMASTER
SET AVAIL_HRS_BAL = 86.330000
WHERE EMPLOYEE = 239 AND EMPLOYEE_GROUP = 'LPNUSICK'

I'm from IT but was asked by the business to find out if this could be done

unknown

If they used a LP program to zero the balances, I'd likely default to using the LP570 and convert the balance back in with a notation about the error. I get nervous about updating tables directly and avoiding any logic that might be needed to keep all tables in sync.