You work as a sales associate at an office supply. A customer purchases an all-in-one desktop computer for $859 and a printer for $199. The customer has a 10% off coupon, and you calculate the total price after tax of 8.3% to be $1,070.22. Your Calculation:
859 + 199 = 1,098
1,098 × (1 − 0.10) = 988.20
988.20 × (1 + 0.083) = 1,070.22

Is there a mistake in the calculation? If so, Identify the mistake.

A)Yes, you made a multiplication mistake.
B)Yes, you made a subtraction mistake.
C)Yes, you made an addition mistake.
D)Yes, you made a decimal placement error.