Answer:
integer currentPrice
integer lastMonthPrice
integer changeLastMonth
float mortagage
//Reading input
currentPrice = Get next input
lastMonthPrice = Get next input
//Calculating price change
changeLastMonth = currentPrice - lastMonthPrice
//Calculating mortagage
mortagage = (currentPrice * 0.045) / 12
//Printing output
Put "This house is $" to output
Put currentPrice to output
Put "\nThe change is $" to output
Put changeLastMonth to output
Put " since last month." to output
Put "\nThe estimated monthly mortgage is $" to output
Put mortagage to output