Compute the change (investment) in net working capital for year 2024 using the following information for Great Trees Corp.

Discount rate	10%
Tax rate	20%
		2020	2021	2022	2023	2024	2025
Sales
Estimated sales after adjusting erosion/synergies			$30000	$33400	$36200	$38400	$40200
Current assets as % of sales			9%	8%	10%	17%	11%
Current liabilities as % of sales			7%	4%	8%	7%	4%
Fixed part of Cost of Goods Sold			$3,000	$1,000	$5,000	$4,000	$3,000
Cost of Goods Sold as % of sales			30%	40%	30%	20%	30%
Fixed part of Selling & Admon. (S&A) expenses			$3,000	$4,000	$3,000	$1,000	$3,000
S&A expenses as % of sales			20%	10%	10%	30%	30%
Depreciation			$1,000	$2,000	$2,000	$2,000	$2,000

In your answer do not enter/use dollar sign ($); use commas to separate thousands; and round up to zero decimals.

Specific instructions as to the sign to enter: If the change in NWC is a cash outflow, you must enter a negative sign ( - ) in front of the first digit (no space in between). If the change in NWC is a cash inflow, simply enter the number (do no enter the + sign)

The change (investment) in net working capital (ΔNWC) in year 2024 is ?