how to calculate penalty student side in asp.net lms

here i am going to show you that how to calculate penalty student side in asp.net lms and also here we are going calculate penalty with late days and we are going to display that and also you can learn that how to make library management system in ASP.NET and SQL SERVER,asp.net library management system,Library Management System Project in ASP.Net C#, how to make library management system in asp.net c# step by step, asp.net library management system.