Table 1-1
Following Is a Random List Showing the Account

Table 1-1
Following is a random list showing the account balances of various assets, liabilities, revenues, and expenses for Spiffy's Garage at December 31, 2019, the end of its first year of operations. $\begin{array} { | l | r | } \hline \text { Accounts receivable } & \$ 15,000 \\\hline \text { Accounts payable } & 3,500 \\\hline \text { Salary expense } & 4,500 \\\hline \text { Repairs expense } & 800 \\\hline \text { Truck } & 8,500 \\\hline \text { Equipment } & 6,300 \\\hline \text { Notes payable } & 8,200 \\\hline \text { Cash } & 6,800 \\\hline \text { Supplies expense } & 1,600 \\\hline \text { Service revenue } & 12,800 \\\hline \text { Gasoline expense } & 800 \\\hline \text { Salary payable } & 2,200 \\\hline\end{array}$ The owner, Spiffy Sloan, invested $22,600 at the beginning of the year and withdrew $5,000 during the year for personal use.
-Refer to Table 1-1. Not including the investment, the net change in owner's equity for the year ended December 31, 2019, was:

A) an increase of $5,100.
B) a decrease of $7,800.
C) an increase of $22,700.
D) an increase of $100.