Sunland and Associates, a consulting service, recently received a bill for repairs on its computer system totaling $2.146. Sunland thinks it may have been overcharged and is trying to recreate the components of the bill. She knows the hourly rate is $74 and 15 hours of labor was charged. She also knows $658 of parts were replaced. Compute the material loading charge percentage the repair service used, (Round answer to 0 decimal places, es. 20\%) Material loading charge percentage