Matt and Crystal are married with a young family of 4 school-age children. Matt is a cargo truck driver for an airline and he has a group benefits plan which offers dental and extended health care coverage for his family. Matts dental plan has a $100 individual deductible and a $300 family deductible. In January, Matt had a dental visit which cost $120. In February, Crystal had a dental visit which cost $150. In March, all 4 of the children went of their annual check-up which cost $400. How much of the total amount from all dental visits was refunded?