In our daily life we are so many times interacting with financial institutions. How they peolpe are counting our interest and fixing our monthly installments. How Payroll and Taxes. What is percentage and discounts. This all fundamental concepts of our daily life maths. This is the book which teach all this stuff. I re-memories all my school stuff and calculate all loans and undestand through this book. This book explain in very simple and sample way.Reading as students or as professional both good.