please help me with this question as soon ad possible.

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Green is no purchases or sales

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Orange is purchases

$1$: $100$ units and $$50$ each

$5$: $400$ units and $$55$ each

$18$: $120$ units and $$60$ each

$25$: $200$ units and $$62$ each

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Blue is sales

$9$: $420$ units and $$85$ each

$29$: $160$ units and $$95$ each