In 2019, the firm had $500 in Cash, $1,250 in Accounts Receivable, $1,100 in inventory, $3,500 in total fixed assets, $600 in Accounts Payable, $800 in Notes Payable, and $2,500 in total long-term debt.

In 2020, the firm had $560 in Cash, $1,380 in Accounts Receivable, $1,120 in inventory, 4,600 in total fixed assets, $700 in Accounts Payable, $840 in Notes Payable, and $3,500 in total long-term debt.

What was the change in Net Working Capital from 2019 to 2020?

Group of answer choices

$50

$60

$70

$80