depriciation - Reducing balance methord

hi, John hope you are doing good. I came across a thing . in lecure and notes example 2 (reducing balance example) in depriciation doesnt include a scrap value , when we calculate through straight line we do reduce scrap value from original investment , DEP = Original cost - scrap value / life of asset , but, should i reduce scrapvalue in reducing balance methord too then calculate as explained by you ?