---

```sql
--Сценарий 1: серая -> вторая
-- Решено у людей до апреля
SELECT ROUND(AVG(reopened = 0 AND came_back = 0) * 100, 1)
FROM razmetka
WHERE period = 'до' AND written = 1
  AND blok IN ('вторая', 'серая');

-- Доля закрытых ботом после апреля
SELECT ROUND(AVG(bot_result = 'закрыл') * 100, 1)
FROM razmetka
WHERE period = 'после' AND written = 1
  AND blok IN ('вторая', 'серая');

-- Решено без переоткрытия и возврата среди закрытых ботом
SELECT ROUND(AVG(reopened = 0 AND came_back = 0) * 100, 1)
FROM razmetka
WHERE period = 'после' AND written = 1
  AND bot_result = 'закрыл'
  AND blok IN ('вторая', 'серая');

--Сценарий 2: серая -> первая
SELECT ROUND(AVG(reopened = 0 AND came_back = 0) * 100, 1)
FROM razmetka
WHERE period = 'до' AND written = 1
  AND blok = 'вторая';

SELECT ROUND(AVG(bot_result = 'закрыл') * 100, 1)
FROM razmetka
WHERE period = 'после' AND written = 1
  AND blok = 'вторая';

SELECT ROUND(AVG(reopened = 0 AND came_back = 0) * 100, 1)
FROM razmetka
WHERE period = 'после' AND written = 1
  AND bot_result = 'закрыл'
  AND blok = 'вторая';
```