question_answer 1)

                On Sunday 845 people went to the Zoo. On Monday only 169 people went. What is the per cent decrease in the people vising the Zoo on Monday?

Answer:

                845 ? 169 = 676 Percent decrease in the number of people who ment to zero on Monday                 \[=\frac{\text{decrease}}{\text{original}\,\text{number}}\,\times 100%\] \[=\frac{676}{845}\times 100%\] = 80 %