diff --git a/client/src/translations/en_us/common.json b/client/src/translations/en_us/common.json
index ce9d9fa61..e774da4d5 100644
--- a/client/src/translations/en_us/common.json
+++ b/client/src/translations/en_us/common.json
@@ -1453,7 +1453,7 @@
 					"partstotal": "This is the total of all parts and sublet amounts on the vehicle (some of these may require an in-house invoice).<br/>\nItems such as shop and paint materials, labor online lines, etc. are not included in this total.",
 					"totalreturns": "The total amount of returns created for this job."
 				},
-				"prt_dsmk_total": "Line Item Markup",
+				"prt_dsmk_total": "Line Item Adjustment",
 				"rates": "Rates",
 				"rates_subtotal": "All Rates Subtotal",
 				"reconciliation": {
diff --git a/server/accounting/qbxml/qbxml-receivables.js b/server/accounting/qbxml/qbxml-receivables.js
index ff3c98e4a..dd49732f8 100644
--- a/server/accounting/qbxml/qbxml-receivables.js
+++ b/server/accounting/qbxml/qbxml-receivables.js
@@ -257,7 +257,9 @@ const generateInvoiceQbxml = (
       if (jobline.prt_dsmk_p && jobline.prt_dsmk_p !== 0) {
         // console.log("Have a part discount", jobline);
         DineroAmount = DineroAmount.add(
-          DineroAmount.percentage(jobline.prt_dsmk_p || 0)
+          DineroAmount.percentage(Math.abs(jobline.prt_dsmk_p || 0)).multiply(
+            jobline.prt_dsmk_p > 0 ? 1 : -1
+          )
         );
       }
       const account = responsibilityCenters.profits.find(
diff --git a/server/job/job-costing.js b/server/job/job-costing.js
index a143959a4..3b466c6d1 100644
--- a/server/job/job-costing.js
+++ b/server/job/job-costing.js
@@ -301,7 +301,8 @@ function GenerateCostingData(job) {
                 amount: Math.round((val.act_price || 0) * 100),
               })
                 .multiply(val.part_qty || 0)
-                .percentage(val.prt_dsmk_p || 0)
+                .percentage(Math.abs(val.prt_dsmk_p || 0))
+                .multiply(val.prt_dsmk_p > 0 ? 1 : -1)
             );
           if (!acc.parts[partsProfitCenter])
             acc.parts[partsProfitCenter] = Dinero();
@@ -330,7 +331,8 @@ function GenerateCostingData(job) {
                   amount: Math.round((val.act_price || 0) * 100),
                 })
                   .multiply(val.part_qty || 0)
-                  .percentage(val.prt_dsmk_p || 0)
+                  .percentage(Math.abs(val.prt_dsmk_p || 0))
+                  .multiply(val.prt_dsmk_p > 0 ? 1 : -1)
               );
 
             if (!acc.parts[partsProfitCenter])
diff --git a/server/job/job-totals.js b/server/job/job-totals.js
index 2bd40d284..54b94f5e1 100644
--- a/server/job/job-totals.js
+++ b/server/job/job-totals.js
@@ -258,7 +258,8 @@ function CalculatePartsTotals(jobLines) {
                     amount: Math.round((value.act_price || 0) * 100),
                   })
                     .multiply(value.part_qty || 0)
-                    .percentage(value.prt_dsmk_p || 0)
+                    .percentage(Math.abs(value.prt_dsmk_p || 0))
+                    .multiply(value.prt_dsmk_p > 0 ? 1 : -1)
                 ),
                 list: {
                   ...acc.parts.list,
@@ -289,7 +290,8 @@ function CalculatePartsTotals(jobLines) {
                       amount: Math.round((value.act_price || 0) * 100),
                     })
                       .multiply(value.part_qty || 0)
-                      .percentage(value.prt_dsmk_p || 0)
+                      .percentage(Math.abs(value.prt_dsmk_p || 0))
+                      .multiply(value.prt_dsmk_p > 0 ? 1 : -1)
                   ),
               },
             };
@@ -425,7 +427,8 @@ function CalculateTaxesTotals(job, otherTotals) {
                 amount: Math.round((val.act_price || 0) * 100),
               })
                 .multiply(val.part_qty || 0)
-                .percentage(val.prt_dsmk_p || 0)
+                .percentage(Math.abs(val.prt_dsmk_p || 0))
+                .multiply(val.prt_dsmk_p > 0 ? 1 : -1)
             )
             .percentage(
               ((job.parts_tax_rates &&