Pivot point calculation


I am using below formula to calculate the pivot point.
p = (high+low+close)/3

There is slight difference between above formula and pivot value shown on kite web intraday chart.
for example, On 2nd Nov 2017, ICICIBANK EOD, high = 320.4, low =311.4, close = 316.65
for 3rd Nov, p = (320.4+311.4+316.65)/3 = 316.65

But on the kite 5 min chart, pivot point shown is 316

Could you please let me know what formula you are using to calculate the pivot point shown on 5 min chart?
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