The volume-based cost driver is machine hours, which have been budgeted for 100,000 hours. Actual machine hours ended up being 105,000. Budgeted manufacturing-overhead costs for the year were $150,000 while actual overhead costs ended up being $160,000. What adjustment needs to be made to Cost of Goods Sold (COGS) at the end of the period. decrease COGS by $2,500.00 Increase COGS by $10,000 Decrease COGS by $10,000 Increase COGS by $2,500.00 Decrease COGS by $12,500.00