Answer:
It shows how much a person earned, and how much was withheld in taxes.
Step-by-step explanation:
W-2 form is an annual report, which the employer must inform the wages and the salary a person has earned in a year with all the federal, states and other taxes (like Social Security and Medicare tax) that were withheld from the paycheck.
The W-2 form is used later to calculated with your Federal tax how much tax a person has paid and if it is necessary to pay more tax or to receive a tax refund.