On January $5,2021,$ Singer Company sells $15,000$ shares of $$1$ par value stock for $$20$ per share. They repurchase $1,000$ of those shares at $$21$ per share on November $15,2021.$ Then on December $30,2021$ they re$-$issue $500$ shares at $$23$ per share.

What is the effect on Stockholders' Equity of the repurchase of shares on November $15,2021?$