A message still on my phone dated May 6, 2020 has a quotation for a packet of 50 masks going for Sh4,500. Today, that same packet goes for about Sh350, a significant drop from Sh90 for one mask to Sh7.
Mathematically speaking, masks were 10 times more expensive one year ago. Imagine if the price of petrol went down by that much, we'd be paying about Sh10 per litre.