Question

A website received 2500 registered members in July. And the number of registered members in August decreased to 2245. What was the percentage decrease in the number of registered members?

Answer 1

Number of registrations a website received during July = 2500

Number of registrations a website received during August = 2245

Number by which the registrations decreased :

`=\tt 2500 - 2245`

`=\tt 255`

Thus, the registrations decreased by 255.

Let x be the perrcentage of decrease.

Which means :

`=\tt 255 = (x)/(100) \: of \: 2500`

`= \tt255 = (x * 2500)/(100)`

`=\tt 255 = (2500x)/(100)`

`= \tt255 * 100 = 2500x`

`= \tt25500 = 2500x`

`=\tt (25000)/(2500) = x`

`\color{plum} =\tt \bold{10.2\%}`

▪︎Thus, the percentage of decrease in the number of registered members = 10.2%