Annual return doesn't match chart data

[kenkunz]

Issue

The "Annual return" percent on ETH/BTC rolling ratio doesn't match the historical returns shown on the chart.

Background

• see discord thread
• see Annual return values in metadata and state don't match #1031

Steps to reproduce

1. Open strategy overview page for ETH/BTC rolling ratio
2. Click "Max" on the chart to see the full performance history
3. Note that the "Annual return" field (below the chart) and lifetime return % on the chart don't match