VisualForce

//Arquivo da página. Nome: ResumoOportunidades
<apex:page controller="ResumoOportunidade" lightningStylesheets="true">
  <head>
      <style>
          th{
              background-color: lightblue;
              font-weight: bold;
              text-align: center;
              padding: 3px;
          }
          td{
              padding: 3px;
          }
      </style>
  </head>
  <div style="text-align: center;">
      <p style="font-weight: bold; font-size: 14pt;">Opportunity Summary</p>

      <table border="1" style="width: 100%; border: 1px black solid; border-collapse: collapse">
          <tr>
              <th></th>
              <th>Open</th>
              <th>Won</th>
              <th>Lost</th>
              <th>Total</th>
          </tr>
          <tr>
              <td style="font-weight: bold; background-color: lightsalmon"># (%)</td>
              <td>{!openCount} ({!openCountPercent}%)</td>
              <td>{!wonCount} ({!wonCountPercent}%)</td>
              <td><span style="color: red;">{!lostCount} ({!lostCountPercent}%)</span></td>
              <td>{!totalCount} ({!totalCountPercent}%)</td>
          </tr>
          <tr>
            <td style="font-weight: bold; background-color: lightsalmon">$$ (%)</td>
            <td>{!openAmount} ({!openAmountPercent}%)</td>
            <td>{!wonAmount} ({!wonAmountPercent}%)</td>
            <td><span style="color: red;">{!lostAmount} ({!lostAmountPercent}%)</span></td>
            <td>{!totalAmount} ({!totalAmountPercent}%)</td>
        </tr>
      </table>
  </div>
</apex:page>

//Arquivo do controller. //ResumoOportunidade

public with sharing class ResumoOportunidade {
    public static Decimal openCount {get;set;}
    public static Decimal wonCount {get;set;}
    public static Decimal lostCount {get;set;}
    public static Decimal totalCount {get;set;}

    public static Decimal openCountPercent {get;set;}
    public static Decimal wonCountPercent {get;set;}
    public static Decimal lostCountPercent {get;set;}
    public static Decimal totalCountPercent {get;set;}

    public static Decimal openAmount {get;set;}
    public static Decimal wonAmount {get;set;}
    public static Decimal lostAmount {get;set;}
    public static Decimal totalAmount {get;set;}

    public static Decimal openAmountPercent {get;set;}
    public static Decimal wonAmountPercent {get;set;}
    public static Decimal lostAmountPercent {get;set;}
    public static Decimal totalAmountPercent {get;set;}

    public ResumoOportunidade(){
        String aId = ApexPages.currentPage().getParameters().get('id');
        List<Opportunity> openList = [SELECT Id FROM Opportunity WHERE AccountId = :aId AND isClosed=false];
        openCount = openList.size();

        List<Opportunity> wonList = [SELECT Id FROM Opportunity WHERE AccountId = :aId AND isWon = true];
        wonCount = wonList.size();

        List<Opportunity> lostList = [SELECT Id FROM Opportunity WHERE AccountId = :aId AND isClosed = true AND isWon = false];
        lostCount = lostList.size();

        List<Opportunity> totalList = [SELECT Id FROM Opportunity WHERE AccountId = :aId];
        totalCount = totalList.size();


        List<AggregateResult> openListAmount = [SELECT sum(amount) oAmount FROM Opportunity WHERE AccountId = :aId AND isClosed = false];
        openAmount = (Decimal)openListAmount[0].get('oAmount');
        openAmount = openAmount==null?0:openAmount.setScale(2);

        List<AggregateResult> wonListAmount = [SELECT sum(amount) wAmount FROM Opportunity WHERE AccountId = :aId AND isWon = true];
        wonAmount = (Decimal)wonListAmount[0].get('wAmount');
        wonAmount = wonAmount==null?0:wonAmount.setScale(2);


        List<AggregateResult> lostListAmount = [SELECT sum(amount) lAmount FROM Opportunity WHERE AccountId = :aId AND isClosed = true AND isWon = false];
        lostAmount = (Decimal)lostListAmount[0].get('lAmount');
        lostAmount = lostAmount==null?0:lostAmount.setScale(2);


        List<AggregateResult> totalListAmount = [SELECT sum(amount) tAmount FROM Opportunity WHERE AccountId = :aId];
        totalAmount = (Decimal)totalListAmount[0].get('tAmount');
        totalAmount = totalAmount==null?0:totalAmount.setScale(2);


        openAmountPercent = ((openAmount/totalAmount)*100).setScale(2);
        openAmountPercent = totalAmount==0?0:openAmountPercent;

        wonAmountPercent = ((wonAmount/totalAmount)*100).setScale(2);
        wonAmountPercent = totalAmount==0?0:wonAmountPercent;

        lostAmountPercent = ((lostAmount/totalAmount)*100).setScale(2);
        lostAmountPercent = totalAmount==0?0:lostAmountPercent;

        totalAmountPercent = ((totalAmount/totalAmount)*100).setScale(2);
        totalAmountPercent = totalAmount==0?0:totalAmountPercent;


        openCountPercent = ((openCount/totalCount)*100).setScale(2);
        wonCountPercent = ((wonCount/totalCount)*100).setScale(2);
        lostCountPercent = ((lostCount/totalCount)*100).setScale(2);
        totalCountPercent = ((totalCount/totalCount)*100).setScale(2);

    }

}