Analyze the budget variances for Google LLC's marketing department for the fiscal year 20XX. The budgeted marketing expenses were $1.2 million, while the actual expenses amounted to $1.5 million. Calculate the spending variance, efficiency variance, and volume variance. Interpret each variance and identify potential causes for the deviations from the budget.

Variance Type	Calculation	Amount ($)
Spending Variance	Actual Expenses - Budgeted Expenses
Efficiency Variance	(Actual Activity - Standard Activity) x Standard Rate
Volume Variance	(Actual Activity - Standard Activity) x Standard Rate