published.priceFeed.ATOM_USD_price_feed has very little resolution

[dckc]

Describe the bug

We set a price was set using E(history[0]).pushResult('19.37') but the ratio we got via RPC is 19 USD to 1 ATOM. Is it using a unit price of 10^-6 ATOM rather than 1 ATOM?

originally discussed in #5375 (comment)

To Reproduce

published.priceFeed.ATOM_USD_price_feed

$ ~/go/bin/agd --node=https://xnet.rpc.agoric.net:443 query vstorage data published.priceFeed.ATOM_USD_price_feed -o json | jq '.value | fromjson | {body: .body | fromjson, slots}'

{
  "body": {
    "quoteAmount": {
      "brand": {
        "@qclass": "slot",
        "iface": "Alleged: quote brand",
        "index": 0
      },
      "value": [
        {
          "amountIn": {
            "brand": {
              "@qclass": "slot",
              "iface": "Alleged: ATOM brand",
              "index": 1
            },
            "value": {
              "@qclass": "bigint",
              "digits": "1"
            }
          },
          "amountOut": {
            "brand": {
              "@qclass": "slot",
              "iface": "Alleged: USD brand",
              "index": 2
            },
            "value": {
              "@qclass": "bigint",
              "digits": "19"
            }
          },
          "timer": {
            "@qclass": "slot",
            "iface": "Alleged: timerService",
            "index": 3
          },
          "timestamp": {
            "@qclass": "bigint",
            "digits": "1660695302"
          }
        }
      ]
    },
    "quotePayment": {
      "@qclass": "slot",
      "iface": "Alleged: quote payment",
      "index": 4
    }
  },
  "slots": [
    null,
    "board02810",
    "board0639",
    null,
    null
  ]
}

Expected behavior

The reported ratio should be 19370000 uist to 1000000 uatom.

Platform Environment

• xnet 20220816214108 6b7b997