Answer:
Percentage decrease = 16
Explanation:
Number of games won last year = 50
Number of games won this year = 42
We need to find the percentage decrease in number of games won this year compared to last year:
% decrease =
![(Decrease\ in\ number\ of\ games\ won)/(Number\ of\ games\ won\ last\ year)*100](https://img.qammunity.org/2020/formulas/mathematics/high-school/trhce2k7c13mmhqaeke3rgf0q2n1zrpd5p.png)
=
![(50-42)/(50)*100=16](https://img.qammunity.org/2020/formulas/mathematics/high-school/w6fklaeqk6cwui550jmrybmrbx134qsuym.png)
Hence percentage decrease is 16.