Question

Christina estimates that she will spend $250 on you summer clothes . She actually spends $350 . What is the percent error .

Answer 1

so 250 is 100%

the error is $100
find the percent of 100 out of 250

so make 100/250 into x/100
hack alert
100/250=10/25=2/5=4/10=40/100=40%

percent error is 40%