Where do I find the payroll tax information for an LLC. I have the quarterly 941. Do I multiple the amounts in 5e by 50%?

50% of line 5(e) on the 941 form would equal the employer share of social security and Medicare tax. To that you would have to add the federal unemployment tax as listed on line 12 of form 940 and also the state unemployment tax off of your state unemployment tax returns to get your payroll tax amount.