## 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/trends/total_volume.py
import urllib.parse
from datetime import datetime
from typing import Any, Callable, Dict, List, Tuple
from posthog.constants import (
    MONTHLY_ACTIVE,
    NON_TIME_SERIES_DISPLAY_TYPES,
    TRENDS_CUMULATIVE,
    UNIQUE_USERS,
    WEEKLY_ACTIVE,
)
from posthog.models.entity import Entity
from posthog.models.event.sql import NULL_SQL
from posthog.models.filters import Filter
from posthog.models.team import Team
from posthog.queries.trends.sql import (
    ACTIVE_USERS_SQL,
    AGGREGATE_SQL,
    CUMULATIVE_SQL,
    SESSION_DURATION_AGGREGATE_SQL,
    SESSION_DURATION_SQL,
    VOLUME_AGGREGATE_SQL,
    VOLUME_PER_ACTOR_AGGREGATE_SQL,
    VOLUME_PER_ACTOR_SQL,
    VOLUME_SQL,
)
from posthog.queries.trends.trends_event_query import TrendsEventQuery
from posthog.queries.trends.util import (
    COUNT_PER_ACTOR_MATH_FUNCTIONS,
    PROPERTY_MATH_FUNCTIONS,
    ensure_value_is_json_serializable,