diff --git a/src/main/fc/core.c b/src/main/fc/core.c
index 02236a25b6..7fd4ea661c 100644
--- a/src/main/fc/core.c
+++ b/src/main/fc/core.c
@@ -570,28 +570,38 @@ void runawayTakeoffTemporaryDisable(uint8_t disableFlag)
 
 
 // calculate the throttle stick percent - integer math is good enough here.
-uint8_t calculateThrottlePercent(void)
+// returns negative values for reversed thrust in 3D mode
+int8_t calculateThrottlePercent(void)
 {
     uint8_t ret = 0;
+    int channelData = constrain(rcData[THROTTLE], PWM_RANGE_MIN, PWM_RANGE_MAX);
+
     if (featureIsEnabled(FEATURE_3D)
         && !IS_RC_MODE_ACTIVE(BOX3D)
         && !flight3DConfig()->switched_mode3d) {
-
-        if ((rcData[THROTTLE] >= PWM_RANGE_MAX) || (rcData[THROTTLE] <= PWM_RANGE_MIN)) {
-            ret = 100;
-        } else {
-            if (rcData[THROTTLE] > (rxConfig()->midrc + flight3DConfig()->deadband3d_throttle)) {
-                ret = ((rcData[THROTTLE] - rxConfig()->midrc - flight3DConfig()->deadband3d_throttle) * 100) / (PWM_RANGE_MAX - rxConfig()->midrc - flight3DConfig()->deadband3d_throttle);
-            } else if (rcData[THROTTLE] < (rxConfig()->midrc - flight3DConfig()->deadband3d_throttle)) {
-                ret = ((rxConfig()->midrc - flight3DConfig()->deadband3d_throttle - rcData[THROTTLE]) * 100) / (rxConfig()->midrc - flight3DConfig()->deadband3d_throttle - PWM_RANGE_MIN);
-            }
+        
+        if (channelData > (rxConfig()->midrc + flight3DConfig()->deadband3d_throttle)) {
+            ret = ((channelData - rxConfig()->midrc - flight3DConfig()->deadband3d_throttle) * 100) / (PWM_RANGE_MAX - rxConfig()->midrc - flight3DConfig()->deadband3d_throttle);
+        } else if (channelData < (rxConfig()->midrc - flight3DConfig()->deadband3d_throttle)) {
+            ret = -((rxConfig()->midrc - flight3DConfig()->deadband3d_throttle - channelData) * 100) / (rxConfig()->midrc - flight3DConfig()->deadband3d_throttle - PWM_RANGE_MIN);
         }
     } else {
-        ret = constrain(((rcData[THROTTLE] - rxConfig()->mincheck) * 100) / (PWM_RANGE_MAX - rxConfig()->mincheck), 0, 100);
+        ret = constrain(((channelData - rxConfig()->mincheck) * 100) / (PWM_RANGE_MAX - rxConfig()->mincheck), 0, 100);
+        if (featureIsEnabled(FEATURE_3D)
+            && IS_RC_MODE_ACTIVE(BOX3D)
+            && flight3DConfig()->switched_mode3d) {
+
+            ret = -ret;  // 3D on a switch is active
+        }
     }
     return ret;
 }
 
+uint8_t calculateThrottlePercentAbs(void)
+{
+    return ABS(calculateThrottlePercent());
+}
+
 static bool airmodeIsActivated;
 
 bool isAirmodeActivated()
@@ -629,7 +639,7 @@ bool processRx(timeUs_t currentTimeUs)
     failsafeUpdateState();
 
     const throttleStatus_e throttleStatus = calculateThrottleStatus();
-    const uint8_t throttlePercent = calculateThrottlePercent();
+    const uint8_t throttlePercent = calculateThrottlePercentAbs();
     
     const bool launchControlActive = isLaunchControlActive();
 
diff --git a/src/main/fc/core.h b/src/main/fc/core.h
index 6d3aa646f7..2a1f1913d2 100644
--- a/src/main/fc/core.h
+++ b/src/main/fc/core.h
@@ -68,7 +68,8 @@ void updateArmingStatus(void);
 void taskMainPidLoop(timeUs_t currentTimeUs);
 
 bool isFlipOverAfterCrashActive(void);
-
+int8_t calculateThrottlePercent(void);
+uint8_t calculateThrottlePercentAbs(void);
 void runawayTakeoffTemporaryDisable(uint8_t disableFlag);
 bool isAirmodeActivated();
 timeUs_t getLastDisarmTimeUs(void);
@@ -78,4 +79,3 @@ void resetTryingToArm();
 void subTaskTelemetryPollSensors(timeUs_t currentTimeUs);
 
 bool isLaunchControlActive(void);
-
diff --git a/src/main/io/osd.c b/src/main/io/osd.c
index fb6b4a9923..977b4d4b6e 100644
--- a/src/main/io/osd.c
+++ b/src/main/io/osd.c
@@ -764,7 +764,7 @@ static bool osdDrawSingleElement(uint8_t item)
     case OSD_THROTTLE_POS:
         buff[0] = SYM_THR;
         buff[1] = SYM_THR1;
-        tfp_sprintf(buff + 2, "%3d", (constrain(rcData[THROTTLE], PWM_RANGE_MIN, PWM_RANGE_MAX) - PWM_RANGE_MIN) * 100 / (PWM_RANGE_MAX - PWM_RANGE_MIN));
+        tfp_sprintf(buff + 2, "%3d", calculateThrottlePercent());
         break;
 
 #if defined(USE_VTX_COMMON)
diff --git a/src/test/unit/osd_unittest.cc b/src/test/unit/osd_unittest.cc
index 7faf227c54..1161c2bae1 100644
--- a/src/test/unit/osd_unittest.cc
+++ b/src/test/unit/osd_unittest.cc
@@ -1079,4 +1079,5 @@ extern "C" {
     bool pidOsdAntiGravityActive(void) { return false; }
     bool failsafeIsActive(void) { return false; }
     bool gpsRescueIsConfigured(void) { return false; }
+    int8_t calculateThrottlePercent(void) { return 0; }
 }