Final answer:
The predetermined overhead rate for August at Latronica Corporation is calculated by adding the variable and fixed overhead (excluding depreciation), and then dividing by the total direct labour-hours. The correct rate is $23.80 per direct labour-hour.
Step-by-step explanation:
To calculate the predetermined overhead rate for August at Latronica Corporation, we need to consider both variable and fixed manufacturing overheads. The variable overhead is given as $8.60 per direct labour-hour, and with 7,100 direct labour-hours expected in August, the total variable overhead will be 7,100 hours * $8.60/hour = $61,060.
The total fixed manufacturing overhead is $132,770 per month. However, since the question states to exclude depreciation when recalculating the predetermined overhead rate, we subtract the depreciation from the fixed overhead: $132,770 - $24,850 = $107,920. Now, summing both variable and fixed overhead gives us: $61,060 + $107,920 = $168,980 total overhead for August.
To find the predetermined overhead rate, we divide the total overhead by the total direct labour-hours: $168,980 / 7,100 hours = $23.80. This makes the correct answer C. $23.80.