Last year Jacob made $2,300 at his summer job. This year he only made $1,771.

What is the percent decrease?

To find the percent decrease, we need to find the difference between the two amounts and then express it as a percentage of the original amount.

The difference between $2,300 and $1,771 is:

$2,300 - $1,771 = $529

To express this difference as a percentage of the original amount, we need to divide the difference by the original amount and multiply by 100:

($529 รท $2,300) x 100% = 22.99%

Therefore, Jacob's summer job earnings decreased by approximately 23%.