Small charm price drop so much, especially this week

I did some data mining, seems my Memory about small charm is correct , it was worth much more.
5/20 ,1 year, -72% value
3/20/20, 1 year, -78% value or lost 140

Jah per charm...

I only pick some data I can find, what I feel from 6 month , it should be only -50% value.
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5/20 60->45->(14-17 float today) , 12-10 month

For 45

Jah Time of sale 10 months ago Perf Title of listing Shimmering small charm of vita Description of listing 20 life 5 resists Bear claw skin Perfect roll, looking for offers in JAHS or mix of high runes NA 3d 22h Seller: wvgcswiglett Buyer: user on traderie
For 60

Jah Time of sale 1 year ago Title of listing Shimmering Small Charm of Vita Description of listing 5 all res 20 Life Football - LF 60

Jah or 30

Jah and a Lightning Grand Charm with 43 life EU 0d 0h Seller: Madmarty Buyer: Ingame

3/20/20 around 3x 5/20
180

Jah-> 130

Jah -> 40

Jah
This price also drop very quick, I was able to see it 50 few days ago, suddenly drop to 40 today.
It probably worth 38-44 range.

You mean 3/20/20.

my view to explain this:
1. Before RoTW, 20/5 or 3/20/20 is main way to trade for pricey item like Perfect Death BA or Exile or Phoenix ST/Vortex... and these 2 are not flexible currency for smaller trade
2. After RoTW, there is significant raise of demand for Lock equipment especially Weapon i.e Fort, BoTD, Doom, Phoenix Mon, Insight where the need for smaller trades skyrocket as well, because of that

Jah/

Ber price goes up unbelievably while 20/5 or 3/20/20 goes down miserably, worth mentioning that the need for things like Perfect Death BA or Exile or Phoenix ST/Vortex no longer standing.
3. My guess is that 20/5 or 3/20/20 will be back to old day once people fill up the demand for Lock equipment (with Low/Mid roll) then the excessive fund will be spent to hunt for perfect rolled item again. As far as i can see, the demand for low/mid roll is still considerable.

There are still several factor...

1. data mining about new craft of small charm

2.loot filter and recent lock / bar combo

3. some people have production line come back to play.

3/20/20
I am not sure if 40

Jah justify those factors...my guess later on if demand crash, it might be 20

Jah to be reasonable after 2 month.

5/20 may be 8-11 if production line maintain current speed til 2 month.