and gross profit margin was $ Net income was $ and contribution margin $ Total variable expenses amounted to $ (only for this answer you must round to one decimal, eg, for The company's operating leverage was 2.34 type 2.3). If revenue increases by $72, net income will increase by % times operating leverage. and gross profit margin was $ Net income was $ and contribution margin $ Total variable expenses amounted to $ (only for this answer you must round to one decimal, eg, for The company's operating leverage was 2.34 type 2.3). If revenue increases by $72, net income will increase by % times operating leverage