Assume time is 13 UTC and that the index spot price of BTCUSD is $37,000, and the relative rate set for the 1 hour period is 0.05% per hour.
Now assume the time is 13:30 UTC and the perpetual trades at $38,000 and you enter a Short position of 4 BTC at this price.
You will immediately begin receiving funding at an absolute rate of 0.05%*$37,000 = 18.5 USD per hour per unit.
In your available balance you will then see this rate applying in your unrealised PnL through continuous funding payout equal to:
18.5 * 4 BTC = $74 per hour
$1.233 per minute
This will pay out continuously until 14 UTC where the relative funding rate will change based on the market activity between 13-14 UTC.
In your 4 BTC short position at the end of the half hour period you will have $36.99 applied in your account log at 14 UTC.
Assume this new relative funding rate is now 0.03% and the real-time spot index is $37,900 for BTCUSD at 14 UTC.
From 14 UTC to 15 UTC a new absolute funding rate will begin applying of 0.03%*$37,900=$11.37 per hour per unit.