During a phone call, Beyunka was told of the most recent transactions in her company's business account. There were deposits of $1, 250 and $3,040.57, three withdrawals of $400 each, and the bank removed two separate $35 penalties to the account that resulted from the bank's errors. Based on the information, how much did the balance of the account change?

the changes were

+1250 + 3050.57 - 3(400) + 2(35)
so just add all that up.