Rial moves daily — confirm the Slemani rate before trading.

68,000 × 306.26 = 20,825,680 ÷ 152,700 = 136.383
$136,383per kg · pure gold
Per gram · 24k$136.38
Per troy oz · 24k$4,241.99
Per mithqal (5g) · 21k$596.68
Per gram · 18k (750) — USD$102.29
Per gram · 18k (750) — toman15,697,862

The Deal

$489Net profit /kg
Kilobar value (995 · 31.99 oz)$139,572
Slemani sell /kg$138,072
Iran cost /kg$136,383
Gross spread /kg$1,689
Total costs$1,200

One mazanneh unit is 4.6083 g of 17k gold — about 3.2652 g pure — so 306.26 units make one kilogram. Quote basis is 705 but physical abshodeh assays ~750 (18k); price per pure gram is unaffected.