Cashflow

Excuse me , the question is : A made a profit for the year 18.750$ ,after accounting for depreciation of 1.250$ during the year , non current asset were purchased for $8000, receivable increased by $1000 , inventories decreased by $1800 and payable increased by 350$ . What was A increase in cash and bank balances during the year ?
So based on your lectures , I found the answer for this question . It’s 13.150 $
But when I looked at the question , ” what was A ‘s INCREASE in cash ” , and I thought that is a decrease .
As the profit for the year is 18750 and after the operating , investing activies . What left is 13.150? Can you pls explain ? Regards