translate English to French: If, for instance, the increase in prices is measured at around 3 % but the price increase due to quality changes is estimated to be around 2 %, then this ﬁgure will be deducted from the overall price increase, thus leaving a "corrected" overall price increase of around 1 %.
Ainsi, la hausse générale des prix « corrigée » sera d’environ 1 %.