The document discusses finding percentages of 3-digit numbers. It explains that the percent symbol (%) means out of 100. To find 1% of a number, you divide it by 100 and move the decimal place two spots to the left. To find 10% of a number, you divide it by 10 and move the decimal one spot to the left. It provides examples of finding percentages of various 3-digit numbers and hints for calculating percentages like 11%, 12%, 16%, and 20%.