SCA60C angle sensor not giving me the right output

I need some help with an SCA60C angle sensor not giving me the right output.

I am using Arduino Uno.

I have 5 volt and ground hooked up.

The Vo is tied to analog A0.

When I run Arduino test program:

When the sensor is Level the program gave me -104.

When I tilt it to the left I get -110 and does not change until tilted to 180 degrees.

When I tilt it to the right I get -54 at 90 degrees tilt and -110 at 180 degrees tilt.

const int anglePin =A0;
int angle =0;
const int angleCompensate =0;

void setup()
{
Serial.begin(9600); // setup serial
Serial.println("Electronic clinic SCA60C Angle Sensor");
}

void loop(){
getAngle();

Serial.print("Analog");
Serial.print(":");
Serial.print(angle);
Serial.print("°");

Serial.print(" ");
Serial.println(analogRead(A0));
delay(100);
}

void getAngle()
{
angle =map(analogRead(A0), 96, 927, -90, 90) + angleCompensate;
}

This program is from the web. If you search on “SCA60C and Arduino” this is the program
that a number of youtube and explanation websites use to explain the how the SCA60c works.

The program is supposed to work like this:
If you tilt it left 90 degrees, the program should read an angle of 90 degrees.
If you tilt it Right 90 degrees, the program should read an angle of 90 degrees.
If the module is set level the output should read an angle of 0 degrees.
The analogRead() was just to see what the sensor was outputing before the map().

/*
 * Tile Angle Sensor SCA60C1 N1000060
 * it displays the angle from 0 to 180 degrees.
 * 
 * Watch video instructions for this code: https://youtu.be/5DjO8Fo_AtE
 * written by Ahmad Shamshiri on Mar 17, 2020 at 20:20 
 * in Ajax, Ontario, Canada. www.robojax.com
 * 
  Need wiring diagram from this code: 
  Purchase My Arduino course on Udemy.com http://robojax.com/L/?id=62
 * 
 * Get this code and other Arduino codes from Robojax.com
Learn Arduino step by step in structured course with all material, wiring diagram and library
all in once place. Purchase My course on Udemy.com http://robojax.com/L/?id=62

If you found this tutorial helpful, please support me so I can continue creating 
content like this. You can support me on Patreon http://robojax.com/L/?id=63
or make donation using PayPal http://robojax.com/L/?id=64

 *  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been download from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

const int anglePin =A0;
int angle =0;
const int angleCompensate =0;

const int d1Pin =A1;
int d1State =LOW;
int d1Delay =0;//watch 

const int d2Pin =A2;
int d2State =LOW;
int d2Delay =0;
char *lables[]={"Angle","Alarm D1","Alarm D2"};

void setup()
{
  Serial.begin(9600);          //  setup serial
  Serial.println("Robojax SCA60C Angle Sensor");
}

void loop(){
  //Robojax Tilt Angle Sensor
  //Watch video for details: https://youtu.be/5DjO8Fo_AtE
  getAngle();
  d1Alarm();
  d2Alarm();
  
  // print out the value you read:
  Serial.print(lables[0]);// 
  Serial.print(":");
  Serial.print(angle);
  Serial.println("°");//degree symbol
//  Serial.print("	");
//  Serial.print(lables[1]);
//  Serial.print(":");  
//  Serial.print(d1State);
//  Serial.print("	");
//  Serial.print(lables[2]);
//  Serial.print(":");
//  Serial.println(d2State);  
//  Serial.println("======");
  delay(100);
//Robojax Tilt Angle Sensor
}

void getAngle()
{
 //watch video instruction https://youtu.be/5DjO8Fo_AtE
   angle =map(analogRead(A0), 96, 927, -90, 90) + angleCompensate; 
}

/**************************************/
/*! 
    @brief  get the state of d1 Alarm  HIGH if triggered
    @param  no parameter
    @returns returns nothing
    written by Ahmad Shamshiri on Mar 17, 2020 at 20:20 in Ajax, Ontario ,Canada
*/
/**************************************/
void d1Alarm()
{
  //watch video for details: https://youtu.be/5DjO8Fo_AtE
  //
  float vo = analogRead(d1Pin) * (5.0 / 1023.0);
  if(vo < 3.5)
  {
    d1State =HIGH;
    delay(d1Delay);    
  }else{
    d1State =LOW;    
  }
}//d1Alarm() end

/**************************************/
/*! 
    @brief  get the state of d1 Alarm  HIGH if triggered
    @param  no parameter
    @returns returns nothing
    written by Ahmad Shamshiri on Mar 17, 2020 at 20:20 in Ajax, Ontario ,Canada
*/
/**************************************/
void d2Alarm()
{
  //watch video for details: https://youtu.be/5DjO8Fo_AtE
  //
  float vo = analogRead(d2Pin) * (5.0 / 1023.0);

  if(vo < 3.5)
  {
    d2State =HIGH;
    delay(d2Delay);    
  }else{
    d2State =LOW;    
  }  
}//d1Alarm() end

Please use code tags when posting code.

angle =map(analogRead(A0), 96, 927, -90, 90)

Please explain how you arrived at the numbers 96 and 927.

It would make sense to replace those numbers with the actual analog input readings, when the sensor is pointed directly up and down. That is, calibrate the sensor.

Don't do that - there's no guarantee that another reading will be the same as the one you converted to "angle".

Please remember to use code tags when posting code

Do you have a meter so you can check that the output of the sensor is 2.5V when level? And it should range from about 0.47V (90° left) to 4.53V (90° right).