It controllable margin is $70000 and the average investment center operating assets are $1000000, the return on investment is 9%. 14.29% 7%. 143% Crane Companyreported the following items for 2019: $72000 230000 Income tax expense Contribution margin Controllable fixed costs Interest expense Total operating assets 80000 54000 50000 How much is controllable margin? $230000 $8000 $72000 $150000