[Sobieski at Kahlenberg Mtn.]

Date
Week
Month
Year
Region
Diesel Price
12/10/2007
49
12
2007
US
$3.325
12/03/2007
48
11
2007
California
$3.567
12/03/2007
48
11
2007
West Coast
$3.532
12/03/2007
48
11
2007
Rocky Mountains
$3.487
12/03/2007
48
11
2007
Gulf Coast
$3.345
12/03/2007
48
11
2007
Midwest
$3.385
12/03/2007
48
11
2007
Lower Atlantic
$3.376
12/03/2007
48
11
2007
Central Atlantic
$3.570
12/03/2007
48
11
2007
New England
$3.595
12/03/2007
48
11
2007
East Coast
$3.444
12/03/2007
48
11
2007
US
$3.416
11/26/2007
47
11
2007
California
$3.620
11/26/2007
47
11
2007
West Coast
$3.587

https://agtransport.usda.gov/Fuel/Historical-Diesel-Fuel-Prices/u2kh-s8ke

This site has weekly and regional, there are graphs which say rising and show 2008 was the peak in price.

[foldspace]

Date	Week	Month	Year	Region	Diesel Price
12/10/2007	49	12	2007	California	$3.455
12/10/2007	49	12	2007	West Coast	$3.440
12/10/2007	49	12	2007	Rocky Mountains	$3.397
12/10/2007	49	12	2007	Gulf Coast	$3.265
12/10/2007	49	12	2007	Midwest	$3.276
12/10/2007	49	12	2007	Lower Atlantic	$3.293
12/10/2007	49	12	2007	Central Atlantic	$3.514
12/10/2007	49	12	2007	New England	$3.570
12/10/2007	49	12	2007	East Coast	$3.372
12/10/2007	49	12	2007	US	$3.325
12/03/2007	48	11	2007	California	$3.567
12/03/2007	48	11	2007	West Coast	$3.532
12/03/2007	48	11	2007	Rocky Mountains	$3.487

[bitt]

++++++++++11

[Axenolith]

For the actual difference then to now calculate the price then and now in 90% silver coinage...