The numbers here assume that each paper bag holds 50 percent more than each plastic bag, meaning that it takes one and half plastic bags to equal a paper bag — it’s not a one-to-one comparison, even though plastic still comes out ahead.
Ang mga numero dito ipinapalagay na ang bawat paper bag hawak ng 50 porsiyento higit sa bawat plastic bag, ibig sabihin na ito ay tumatagal ng isa at kalahating plastic bag na katumbas ng isang paper bag - ito ay hindi isang isa-sa-isang paghahambing, kahit na plastic pa rin dumating ang maaga.