Erin's cat ginger likes to eat. The veterinarian as concerned about ginger's weight and put the cat on a strict diet. Over a six month period, ginger's weight decreased fro, 22lbs. to 16.5 lbs. Calculate the percent change

-25%

Step-by-step explanation:

Tow calculate the percentage change we need the difference in mass:

16.5 - 22 = - 5.5 : Now we need to divide by the original amount and then multiply by 100:

-5.5 : 22 = - 0.25

-0.25 * 100 = - 25%