Answer:
87.5%
Step-by-step explanation:
Given:
Number of tickets written in the last week, [tex]T_{1}=8[/tex]
Number of tickets written in this month, [tex]T_{2} =1[/tex]
Difference in tickets written = [tex]T_{2}-T_{1}=8-1=7[/tex]
∴ Percent decrease = [tex]\frac{T_{2}-T_{1}}{T_{1}}\times 100=\frac{7}{8}\times 100=87.5[/tex]
Therefore, percent decrease in tickets written is 87.5 %.