Respuesta :

whatever% of anything is just (whatever/100) * anything.

if the old fare of 23.55 was the 100%, and it got increased by 2.8%, then the new fare is 100% + 2.8% or 102.8%.

how much is 102.8% of 23.55?  well is just (102.8/100) * 23.55.

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