diff --git a/include/proto/server.h b/include/proto/server.h
index d19c6ac9f..9c1dbf7fb 100644
--- a/include/proto/server.h
+++ b/include/proto/server.h
@@ -64,6 +64,20 @@ void srv_dump_kws(char **out);
  */
 void server_recalc_eweight(struct server *sv);
 
+/* returns the current server throttle rate between 0 and 100% */
+static inline unsigned int server_throttle_rate(struct server *sv)
+{
+	struct proxy *px = sv->proxy;
+
+	/* when uweight is 0, we're in soft-stop so that cannot be a slowstart,
+	 * thus the throttle is 100%.
+	 */
+	if (!sv->uweight)
+		return 100;
+
+	return 100U * (px->lbprm.wmult * sv->eweight + px->lbprm.wdiv - 1) / (px->lbprm.wdiv * sv->uweight);
+}
+
 /*
  * Parses weight_str and configures sv accordingly.
  * Returns NULL on success, error message string otherwise.
diff --git a/src/dumpstats.c b/src/dumpstats.c
index e23a766aa..99d16d7d8 100644
--- a/src/dumpstats.c
+++ b/src/dumpstats.c
@@ -2326,12 +2326,8 @@ static int stats_dump_sv_stats(struct stream_interface *si, struct proxy *px, in
 			chunk_appendf(&trash, "<td colspan=3></td>");
 
 		/* throttle */
-		if ((sv->state & SRV_WARMINGUP) &&
-		    now.tv_sec < sv->last_change + sv->slowstart &&
-		    now.tv_sec >= sv->last_change) {
-			chunk_appendf(&trash, "<td class=ac>%d %%</td></tr>\n",
-			              (int)MAX(1, 100 * (now.tv_sec - sv->last_change) / sv->slowstart));
-		}
+		if (sv->state & SRV_WARMINGUP)
+			chunk_appendf(&trash, "<td class=ac>%d %%</td></tr>\n", server_throttle_rate(sv));
 		else
 			chunk_appendf(&trash, "<td class=ac>-</td></tr>\n");
 	}
@@ -2406,10 +2402,8 @@ static int stats_dump_sv_stats(struct stream_interface *si, struct proxy *px, in
 		              relative_pid, px->uuid, sv->puid);
 
 		/* throttle */
-		if ((sv->state & SRV_WARMINGUP) &&
-		    now.tv_sec < sv->last_change + sv->slowstart &&
-		    now.tv_sec >= sv->last_change)
-			chunk_appendf(&trash, "%d", (int)MAX(1, 100 * (now.tv_sec - sv->last_change) / sv->slowstart));
+		if (sv->state & SRV_WARMINGUP)
+			chunk_appendf(&trash, "%d", server_throttle_rate(sv));
 
 		/* sessions: lbtot */
 		chunk_appendf(&trash, ",%lld,", sv->counters.cum_lbconn);