What does the INDEX mean

If we take the Index of DHA,
its 178.25 of DHA as a whole
136.88 for DHA 5 Marla
175.31 for DHA 2 kanal.
What does Index property signify/mean? How is it calculated?
And how can it help buyers or sellers.

Zameen has not provided their formula to calculate index, so it is hard to interpret what the value means. However, you can look at prices and their 3, 6 and 12 months movement. Another useful thing is the chart which shows direction and slope of the price curve.

It helps you make the buying/selling decision. For example, a stationary line means prices are stagnant and you can buy or sell. Whereas, a sharp incline shows that you should hurry in buying and delay your selling decision.