Norsk Optronics, ALS, of Bergen, Norway, had a current ratio of $4$ on June $30$ of the current year. On that date, the company$$s assets were:

Cash $ $66,000$

Accounts receivable, net $400,000$

Inventory $670,000$

Prepaid expenses $10,000$

Plant and equipment, net $1,820,000$

Total assets $ $2,966,000$

Required:

$1.$ What was the company$$s working capital on June $30?$

$2.$ What was the company$$s acid$-$test ratio on June $30?($Round your answer to $2$ decimal places.$)$

$3.$ The company paid an account payable of $$48,000$ immediately after June $30.$

a$.$ What effect did this transaction have on working capital?

b$.$ What effect did this transaction have on the current ratio? $($Round your intermediate calculations to $1$ decimal place.$)$