I posted this earlier, but got no answer. So I am re-posting.

Jean deposited a check for $625, wrote two for $68.74 and
$29.95 and used her debit card to pay for a purchase of $57.65. How has her
account balance changed?

I am a little lost, I understand the deposit BUT from what I understand she wrote 2 check in the amount of $68.74 each and then 2 checks for $29.95 and then used her debet card for $57.65?
Or was it just 2 checks all together 1 for $68.74 and 1 for $29.95 and then used her debet card for $57.65?

Her account was credited (went up) by $625.00 and was debited (went down) by $156.34 (<~~29.95 + 68.74 + 57.65).

So subtract the smaller number from the larger. How did the account change overall? Did it increase or decrease?

(Without knowing the original balance, there's no way to know what the ending balance is.)