1. Benchmark. We start from the 24K (99.9% pure) rate per tola in Pakistan’s bullion market.
2. Karats. 22K, 21K and 18K are the 24K rate multiplied by 22/24, 21/24 and 18/24.
3. Units. Per gram = per tola divided by 11.6638. Per masha = per tola divided by 12. Per 10 grams = per gram times 10.
4. Rounding. Figures are rounded to the nearest rupee.
5. Dating. Every page shows the date the rate was captured, so you can see how fresh it is.