The eagles won 15 games last year, and 8 games this year. What was the percent change?

P = percent change

N = new value = 8

S = starting value = 15

P = 100 * (N-S) / S

P = 100 * (8-15) / 15

P = 100 * (-7) / 15

P = - 700/15

P = - 46.67% approximately

So if they won 15 games last year, then 8 games this year, then the percent change is approximately - 46.67%

The negative percent indicates "a drop" or "decrease" in value. So you could say "the number of games won dropped by roughly 46.67 percent"