Put the current budget balance beside a purchase request for review.
Attach current balances to requests for your budget review.
Your finance reviewer can see the current budget balance beside a purchase request, without hunting through a separate sheet.
Put revised budget balances before pending purchase reviewers.
Your pending purchase requests show revised balances beside the amount requested, giving finance reviewers the latest sheet figure as they decide.
Show current balances beside requests awaiting finance approval.
Your reviewers can see a current budget balance beside pending purchases before deciding, with a fresh note when the figure changes.