Fix terse bandwidth

Off by 1.024

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/stat.c b/stat.c
index 542e910..8c846f6 100644
--- a/stat.c
+++ b/stat.c
@@ -613,7 +613,7 @@
 	if (ts->runtime[ddir]) {
 		uint64_t runt = ts->runtime[ddir];
 
-		bw = ts->io_bytes[ddir] / runt;
+		bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
 		iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
 	}