Percent change in a growing number (10% multiples)

This math topic provides practice on calculating the percent change in numbers that grow by multiples of 10%. It involves determining the percentage by which a number increases to a new value, e.g., from 10 to 13 or from 90 to 99. The problems are multiple-choice and are designed for learners at level 1 of a unit on introductory percentages. Each question presents a different base number and its increased value, requiring the calculation of the percent increase between these two numbers.