In this case, the percent if change is a percent decrease because the original was decreased by 11 to get the new. To find the percent of change,take: 11÷55=0.2 or 0.2×100=20%. Or You can take: 44÷55=0.8 or 80% Then, 100%-80%=20% to get the percent of change. As a result, the percent of change is 20%. Hope it help!