Question

Shaun collected $925 on the first day of a charity fundraiser. On the second day,
he collected $728. By the third day, he had collected a total of $2,538.
a) What was the percent decrease in the amount of money collected from
the first day to the second day? Round your answer to 1 decimal place.
b) Find the percent increase or decrease in the amount collected from the
second day to the third day. Round your answer to 1 decimal place.

Answer 1

Dear student
$$\begin{gathered} \mathrm{Amount}\mathrm{collected}\mathrm{on}\mathrm{first}\mathrm{day}=\&925 \\ \mathrm{Amount}\mathrm{collected}\mathrm{on}\mathrm{second}\mathrm{day}=\&728 \\ \mathrm{Total}\mathrm{amount}\mathrm{collected}=\&2,538 \\ \mathrm{So},\mathrm{Amount}\mathrm{collected}\mathrm{for}\mathrm{the}\mathrm{third}\mathrm{day}=\&2,538-\left(925+728\right)=\&885 \\ \mathrm{a})\mathrm{So},\%\mathrm{decrease}\mathrm{in}\mathrm{the}\mathrm{amount}\mathrm{of}\mathrm{money}=\frac{728-925}{925}\times 100=-21.29\% \\ \mathrm{so},\mathrm{after}\mathrm{rounding}\mathrm{off}\mathrm{we}\mathrm{get}21.3\% \\ \mathrm{b})\frac{885-728}{728}\times 100=25.56 \\ \mathrm{So},\mathrm{there}\mathrm{is}25.6\%\mathrm{increase} \end{gathered}$$
Regards