The phrase "to offset the difference" means to balance or counteract a discrepancy or variation between two things. It involves taking action to reduce or eliminate the contrast or disparity between them. Full definition
This can make such foods a bit more costly, but many of the pet supply retailers offer sales and store club card member coupons that can offset the difference in cost. (petpremium.com)
To help offset the differences, previous - gen versions of the game will ship with the original Black Ops, and cost $ 50 instead of $ 60. (egmr.net)
Yet a simple calculation will show that less than 10 years of greenhouse gas forcing offset the difference between the peak and trough of the solar cycle, so this is not possible without widespread and sustained vulcanism — is he predicting this? (bravenewclimate.com)