90% reimbursement is calculated by multiplying the total cost by 90%, which is the amount of money reimbursed.

Answer this question according to the relevant formulas, rules and calculation methods of mathematical calculation. For example, Lao Liang has medical insurance.

According to his age and medical insurance payment, he can enjoy 90% reimbursement of medical expenses in local hospitals. The hospitalization expenses of Lao Liang were * * * 15000 yuan, and 15000 yuan multiplied by 90% was equal to 13500 yuan, and 13500 yuan was reimbursed. He personally only paid 1500. This is an example of how to calculate 90% reimbursement.