Answer:
22%
Explanation:
Given: Profit this year= $245000
 Profit last year= $315000
Now, lets find the percentage decrease in profit this year.
Profit percentage= 

Profit percentage= 

⇒ Profit percentage= 

⇒ Profit percentage=~
 ≅ 22% (nearest whole percent)
 ≅ 22% (nearest whole percent)
∴ Percent decrease in profit is 22%