Use the laws of logarithms to simplify the expression. 
Definitions:
Spending Variance
The difference between the budgeted or planned amount of cost and the actual amount incurred.
Total Expenses
The cumulative amount of all costs and expenses incurred by a business during a specified reporting period.
Spending Variance
The difference between the actual amount of money spent and the budgeted amount for a particular cost category or department.
Planning Budget
A planning budget is used for guiding a company's spending and operational goals before the start of a financial period.
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