Final answer:
The multiplier in this example is 2.13.
Step-by-step explanation:
In this example, the multiplier is calculated by dividing the change in aggregate expenditure by the initial increase in government spending.
The multiplier formula is: multiplier = change in aggregate expenditure / initial increase in government spending.
Using the example given, the initial increase in government spending is $100 and the change in aggregate expenditure is $213. Therefore, the multiplier is $213 / $100 = 2.13.