diff --git a/src/scheduler_priority.go b/src/scheduler_priority.go
index 756e3d8..5ef0e43 100644
--- a/src/scheduler_priority.go
+++ b/src/scheduler_priority.go
@@ -94,8 +94,8 @@ func (scheduler *SchedulerPriority) Start() {
 								numberGPUt += task.NumberGPU
 							}
 
-							needGPU := InstanceOfResourcePool().TotalGPU - InstanceOfResourcePool().UsingGPU
-							score = float64(time.Now().UnixNano()/100000-int64(jobT.CreatedAt)) * math.Abs(float64(numberGPU-numberGPUt+needGPU)) / float64(numberGPUt)
+							needGPU := numberGPU - (InstanceOfResourcePool().TotalGPU - InstanceOfResourcePool().UsingGPU)
+							score = float64(time.Now().UnixNano()/100000-int64(jobT.CreatedAt)) * math.Abs(float64(numberGPU-needGPU)) / float64(numberGPUt)
 
 							if score < minScore {
 								minScore = score