Example 1 - Find Percent Increase (page 538)What is the percent change of the alligator's length?Percent change and percent errorproblems are kinds of percent problems.You can use the percent equation tosolve them.part = percent wholeamount = percent • originalof changechange amount32 inches last yearThe percent change is apercent increase because thealligator's length increased.% change32 inches32 inches38 inches this year100%The changein length is6 inchesThe amount of change is the differencebetween original and new values.Is the change from last year to this year a percent increase or percentdecrease?The alligator's length increased by%