A car corporation produced 1620 fewer cars this month than last.

Write a signed number to represent this month's change in production.

You don't have to give me the answer please help me understand how to do the problem.
Thanks :)

4 answers

well, it will be either + or - right?
yes
A car corporation produced 1680 fewer cars this month than last.
Write a signed number to represent this month's change in production.
I need help