message: Progress calculation (snapshot)
diff: @@ -189,7 +189,7 @@ export default class Trie implements TrieDb {
  keys = this._snapshot(dest, fn, u8a, keys, percent, depth + 1);
  }
  - percent += (100 / node.length) / Math.pow(100, depth);
  + percent += (100 / node.length) / Math.pow(17, depth);
  });
  return keys;
  