Calculation of the budgeted indirect cost rate:
It is given that budgeted total costs of the firm total $4,000,000 of which $2,500,000 is direct-labor costs. Hence Total Indirect Cost is ($4,000,000-$2,500,000) = $1,500,000
It is also given that direct-labor cost is the allocation base. Hence the allocation rate shall be calculated as follows:
Budgeted indirect cost rate = Total Indirect Cost / Total direct-labor costs
= 1,500,000 / 2,500,000
= 0.6
=60%
Hence the budgeted indirect cost rate is 60% of Direct labor cost.