## Bug description

Monthly Active Users metric seems wrong when choosing "# Number" as chart type.

Number: 
![image](https://user-images.githubusercontent.com/513669/201980874-be7d9c0d-5c9c-4c1e-955c-ea4143c84061.png)

Line chart: 
![image](https://user-images.githubusercontent.com/513669/201980986-b17af929-84e5-4f6a-b7f8-23b7ac8bedbc.png)

**490 != 70**

## How to reproduce

1. Create a new insight using any event and the "Monthly active users" metric
2. Date range = This month + Grouped by = Day
3. Choose chart type as Number => remember value
4. Change chart type as Linear => check last data point

=> the 2 values do not match
=> in other words there's a diff between a total aggregation and an aggregation per bucket of time ?

## Environment

- [x] PostHog Cloud
posthog/queries/test/test_trends.py
entity = Entity({"id": "$pageview", "name": "$pageview", "type": TREND_FILTER_TYPE_EVENTS})
        num_label = breakdown_label(entity, 1)
        self.assertEqual(num_label, {"label": "$pageview - 1", "breakdown_value": 1})
        string_label = breakdown_label(entity, "Chrome")
        self.assertEqual(string_label, {"label": "$pageview - Chrome", "breakdown_value": "Chrome"})
        nan_label = breakdown_label(entity, "nan")
        self.assertEqual(nan_label, {"label": "$pageview - Other", "breakdown_value": "Other"})
        none_label = breakdown_label(entity, "None")
        self.assertEqual(none_label, {"label": "$pageview - Other", "breakdown_value": "Other"})
        cohort_all_label = breakdown_label(entity, "cohort_all")
        self.assertEqual(cohort_all_label, {"label": "$pageview - all users", "breakdown_value": "all"})
        cohort = _create_cohort(team=self.team, name="cohort1", groups=[{"properties": {"name": "Jane"}}])
        cohort_label = breakdown_label(entity, f"cohort_{cohort.pk}")
        self.assertEqual(cohort_label, {"label": f"$pageview - {cohort.name}", "breakdown_value": cohort.pk})
    @test_with_materialized_columns(["key"])
    def test_breakdown_with_filter(self):