The phrase "price differential" refers to the difference in price between two similar products or services. It highlights how prices may vary between different sellers or markets. Full definition
The current huge price differential between Asian and North American gas prices, with Asian prices being some five times the North American average, is unlikely to last. (asiapacific.ca)
If so, then I don't understand the huge price differential. (1800petmeds.com)
Yes, it can, as the $ 10,000 base price differential can buy lots of fuel along the way. (bestride.com)