diff --git a/assets/js/views/Optimize.vue b/assets/js/views/Optimize.vue
index eb242c371..3a133b713 100644
--- a/assets/js/views/Optimize.vue
+++ b/assets/js/views/Optimize.vue
@@ -16,7 +16,14 @@
 							<span class="d-block no-wrap text-truncate">Result: Charging Plan</span>
 							<small class="d-block no-wrap text-truncate">
 								{{ evopt.res.status }} ・
-								{{ fmtMoney(evopt.res.objective_value || 0, currency, true, true) }}
+								{{
+									fmtMoney(
+										(evopt.res.objective_value || 0) * -1,
+										currency,
+										true,
+										true
+									)
+								}}
 								saved
 							</small>
 						</h3>