Caculations based on conditions

Hello,

im writing in regards of how to caculate the change in absolute value from two given values if certain conditions are met. For instance,
If the price from the past 7 days worth of data for XYZ stock is as shown below
Day Price
1- 51----
2- 55----
3- 61----
4- 57----
5- 52----
6- 49----
7- 58----
and say the corresponding hypothetical volatilty for each day was

Day Volatility
1- 4----
2- 5---- -(change in absolute value in price given above from day 1 - 2 )
3- 4----
4- 6---- -
5- 6---- (
6- 8---- change in absolute value in price given above from day 3 - 7
7- 5---- ) -

and the objective was to find the change in absolute value of price when volatility >= 5, what would be the respective excel formula (s) to do so?
(i have highlighted in BOLD font on the days where the volatility >= 5)

Thanks,
Peter