A company hires you to develop a linear regression forecasting model. Based on the company's historical sales information, you determine the intercept value of the model to be $1,500.$ You also find the slope value is $-25.$ If after developing the model you are given a value of X $=8,$ which of the following is the resulting forecast error using this model if the actual sales is $1250?$

Group of answer choices

$100$

$50$

$-50$

$-100$