将公式从Excel更改为C＃应用程序的Crystal报表

Question

我想使用Excel工作表公式处理百分比标记以计算CGPA。它在Excel中可以正常运行，但是当我重写它以使用它时，Crystal Reports却无法正常运行。例如，当@Percentage为77时，它会显示3.40 GPA，但应该给出3.50（准确）。

Excel公式，其中J18是每个学生的分数：

<send-request mode="new" response-variable-name="putStorageRequest" timeout="5" ignore-error="true">
            <set-url>@((string)context.Variables["blobUrl"])</set-url>
            <set-method>PUT</set-method>
            <set-header name="x-ms-date" exists-action="override">
                <value>@((string) context.Variables["date"] )</value>
            </set-header>
            <set-header name="x-ms-version" exists-action="override">
                <value>@((string) context.Variables["version"] )</value>
            </set-header>
            <set-header name="x-ms-blob-type" exists-action="override">
                <value>BlockBlob</value>
            </set-header>
            <set-header name="Content-Type" exists-action="override">
                <value>application/zip</value>
            </set-header>
            <set-header name="Authorization" exists-action="override">
                <value>@{
                        string body = context.Request.Body.As<string>(preserveContent: true);
                        string contentType = "application/zip";
                        var base64String = (string)context.Variables.GetValueOrDefault<JObject>("body")["data"]) ;
            var bytes = Convert.FromBase64String(base64String); 
            var ascii = Encoding.ASCII.GetString(bytes)
                        var contentLength = ascii.Length;
                        var hmacSha256 = new System.Security.Cryptography.HMACSHA256 { Key = Convert.FromBase64String(context.Variables.GetValueOrDefault<string>("storageKey")) };
                        var payLoad = string.Format("{0}\n\n\n{1}\n\n{2}\n\n\n\n\n\n\nx-ms-blob-type:BlockBlob\nx-ms-date:{3}\nx-ms-version:{4}\n{5}", 
                            "PUT", 
                            contentLength,
                            contentType,
                            context.Variables["date"],
                            context.Variables["version"],
                            "/" + context.Variables.GetValueOrDefault<string>("storageAccountName") + context.Variables.GetValueOrDefault<string>("resource"));
                        return "SharedKey "+ context.Variables.GetValueOrDefault<string>("storageAccountName") + ":" + Convert.ToBase64String(hmacSha256.ComputeHash(Encoding.UTF8.GetBytes(payLoad)));
                    }</value>
            </set-header>
            <set-body>@{
                var base64String = (string)context.Variables.GetValueOrDefault<JObject>("body")["data"]) ;
                var bytes = Convert.FromBase64String(base64String); 
                var ascii = Encoding.ASCII.GetString(bytes); 
                return ascii;         
            }</set-body>
        </send-request>

与Crystal Reports相同的公式@Percentage是可以正常运行的Percentage Calc公式：

IF(H12>=85,"4.00",IF(H12>=83,"3.90",IF(H12>=82,"3.80",IF(H12>=80,"3.70",IF(H12>=79,"3.60",IF(H12>=77,"3.50",IF(H12>=76,"3.40",IF(H12>=74,"3.30",IF(H12>=73,"3.20",IF(H12>=71,"3.10",IF(H12>=70,"3.00",IF(H12>=69,"2.90",IF(H12>=68,"2.80",IF(H12>=67,"2.70",IF(H12>=66,"2.60",IF(H12>=65,"2.50",IF(H12>=64,"2.40",IF(H12>=63,"2.30",IF(H12>=62,"2.20",IF(H12>=61,"2.10",IF(H12>=60,"2.00",IF(H12>=59,"1.90",IF(H12>=58,"1.80",IF(H12>=57,"1.70",IF(H12>=56,"1.60",IF(H12>=55,"1.50",IF(H12>=54,"1.40",IF(H12>=53,"1.30",IF(H12>=52,"1.20",IF(H12>=51,"1.10",IF(H12>=50,"1.00",IF(H12<50,"0.00",))))))))))))))))))))))))))))))))