Stock Market Price Prediction Based on Previous Days Values

Using historical data from previous dates, try to predict the next day Maximum & Minimum value of any Stock Symbol.

There will be a list of stock symbols of my interest. You have to provide predictions for all of them.

All predictions have to be recorded in a database.
- Date
- Forecast Minimum
- Forecast Maximum
- Actual Minimum
- Actual Maximum

Actual values for stock symbols in pictures A, B, C & D, Minimum and Maximum were:
- USD/MXN - 19.7192 / 19.8690
- ETH - 3,422.00 / 3,535.15
- AGRI - 3.1500 / 3.6000
- INDO - 21.48 / 22.97

QUESTION 1: What accuracy you will be able to provide?

QUESTION 2: What would be the value range you would anticipate (forecast) for maximum and minimum the day before for all 4 test stock symbols?

Historical prices can be found here:
- USD/MXN - https://finance.yahoo.com/quote/MXN%3DX/history?p=MXN%3DX
- ETH - https://finance.yahoo.com/quote/ETH-USD/history?p=ETH-USD
- AGRI - https://finance.yahoo.com/quote/AGRI/history?p=AGRI
- INDO - https://finance.yahoo.com/quote/INDO/history?p=INDO

A 15 days test will be needed for all 4 test stock symbols to measure accuracy.