A question about MACD

Hi,

i’m pretty new to trading in crypto,started to day trade(i thought i learned enough in no time) and lost some money,than i realized i should learn more so i stopped trading,learned more about it for months and now i’m slowly but making profits on most of my short trades. I use tradingviews CRYPTOCURRENCY SIGNAL FINDER to set up a signal.What i’m looking at is 5 minutes oversold,MACD to be down together with STOCHrsi and here is what i would like to know.

I found that on some coin the MACD is -0.000811 and on the chart it looks like it is the bottom so MACD is down,while on other coind when the MACD looks to be down and touched the bottom it is only -0.00000009. How is that possible? Can anyone explain that to me and how should i look at MACD reading.

thanx