Anthony S. Georgilas, "Percentages Made Simple: A short tutorial on how to work out percentages"English | 2021 | ISBN: 1520676557 | ASIN: B00AHZRJUM | EPUB | pages: 31 | 0.5 mb
I decided to write this book because I have realised that many of us have some trouble understanding what percentages are and how to work them out.