diff --git a/build.sh b/build.sh
index dfbdeef..efb1ecc 100755
--- a/build.sh
+++ b/build.sh
@@ -68,14 +68,14 @@ buildp_dispatch_pkg_state() {
 	missing_pkg)	rtl_log_msg fatalexit "Error: unknown package \`%s'." "${_pkg_name}"; ;;
 	msg_pkg)	shift 3; rtl_log_msg verbose "%s/%s: %s" "${_group_name}" "${_pkg_name}" "${*}"; ;;
 	skipped_pkg)	: $((BUILD_NSKIP+=1)); rtl_log_msg verbose "Skipping finished package \`%s'." "${_pkg_name}"; ;;
-	start_pkg)	rtl_log_msg info "[% 3d%%] [%03d/%03d] Starting \`%s' build..." "$(((100*${4} + ${5}/2)/${5}))" "${4}" "${5}" "${_pkg_name}"; ;;
+	start_pkg)	rtl_log_msg info "[% 3d%%] [%03d/%03d] Starting \`%s' build..." "${6}" "${4}" "${5}" "${_pkg_name}"; ;;
 	step_pkg)	rtl_log_msg verbose "Finished build step %s of package \`%s'." "${4}" "${_pkg_name}"; ;;
 	finish_pkg)
 		: $((BUILD_NFINI+=1));
 		if [ "${ARG_VERBOSE:-0}" -ge 2 ]; then
 			cat "${BUILD_WORKDIR}/${_pkg_name}_stderrout.log";
 		fi;
-		rtl_log_msg info_end "Finished \`%s' build." "${_pkg_name}"; ;;
+		rtl_log_msg info_end "[% 3d%%] [%03d/%03d] Finished \`%s' build." "${6}" "${4}" "${5}" "${_pkg_name}"; ;;
 	start_pkg_child)
 		if [ "${PKG_NO_LOG_VARS:-0}" -eq 0 ]; then
 			rtl_log_env_vars "build" $(rtl_get_vars_fast "^PKG_");
diff --git a/subr/ex_pkg_dispatch.subr b/subr/ex_pkg_dispatch.subr
index 4d4574d..3145ab2 100644
--- a/subr/ex_pkg_dispatch.subr
+++ b/subr/ex_pkg_dispatch.subr
@@ -61,14 +61,18 @@ exp_pkg_dispatch_expand_packages() {
 exp_pkg_dispatch_group() {
 	local	_build_steps_default="${1}" _build_vars_default="${2}" _checkfl="${3}"		\
 		_dispatch_fn="${4}" _group_name="${5}" _njobs_max="${6}" _pipe_path="${7}"	\
-		_restart_at="${8}" _workdir="${9}" _pipe_msg="" _pkg_name="" _rc=0;
+		_restart_at="${8}" _workdir="${9}" _pipe_msg="" _pkg_name="" _rc=0 _status_percentage="";
 	rtl_fileop mkfifo "${_pipe_path}";
 	while true; do
 		while [ "${EXP_PKG_DISPATCH_NJOBS:-0}" -gt 0 ] && read _pipe_msg; do
 		case "${_pipe_msg%% *}" in
 		done)	_pkg_name="${_pipe_msg#done * }"; : $((EXP_PKG_DISPATCH_NJOBS-=1));
 			EX_PKG_FINISHED="$(rtl_lconcat "${EX_PKG_FINISHED}" "${_pkg_name}")";
-			"${_dispatch_fn}" finish_pkg ${_pipe_msg#done };
+			_status_percentage="$(((100 * ${EXP_PKG_DISPATCH_COUNT} + ${EXP_PKG_DISPATCH_COUNT_MAX} / 2)))";
+			if [ "${_status_percentage}" -gt 0 ]; then
+				_status_percentage="$((${_status_percentage} / ${EXP_PKG_DISPATCH_COUNT_MAX}))";
+			fi;
+			"${_dispatch_fn}" finish_pkg ${_pipe_msg#done } "${EXP_PKG_DISPATCH_COUNT_MAX}" "${_status_percentage}";
 			EX_PKG_NAMES="$(rtl_lfilter "${EX_PKG_NAMES}" "${_pkg_name}")";
 			EX_PKG_DISPATCH_WAIT="$(rtl_lfilter "${EX_PKG_DISPATCH_WAIT}" "${_pkg_name}")";
 			if [ -n "${EX_PKG_NAMES}" ] && [ "${_rc}" -eq 0 ]; then
@@ -84,7 +88,7 @@ exp_pkg_dispatch_group() {
 				break;
 			fi; ;;
 		fail)	: $((EXP_PKG_DISPATCH_NJOBS-=1)); _rc=1;
-			"${_dispatch_fn}" fail_pkg ${_pipe_msg#fail }; ;;
+			"${_dispatch_fn}" fail_pkg ${_pipe_msg#fail } "${EXP_PKG_DISPATCH_COUNT_MAX}"; ;;
 		msg_pkg)
 			"${_dispatch_fn}" msg_pkg ${_pipe_msg#msg_pkg }; ;;
 		step)	"${_dispatch_fn}" step_pkg ${_pipe_msg#step }; ;;
@@ -119,15 +123,19 @@ exp_pkg_dispatch_group() {
 # Return:			zero (0) on success, non-zero (>0) on failure, ${EXP_PKG_DISPATCH_NJOBS}, ${EXP_PKG_DISPATCH_COUNT}, ${EX_PKG_NAMES}, and ${EX_PKG_DISPATCH_WAIT} may be mutated post-return.
 #
 exp_pkg_dispatch_package() {
-	local	_build_steps_default="${1}" _build_vars_default="${2}" _dispatch_fn="${3}"	\
-		_group_name="${4}" _pkg_name="${5}" _restart_at="${6}" _workdir="${7}";
-	if "${_dispatch_fn}" start_pkg "${_group_name}" "${_pkg_name}" "$((${EXP_PKG_DISPATCH_COUNT}+1))" "${EXP_PKG_DISPATCH_COUNT_MAX}"; then
+	local	_build_steps_default="${1}" _build_vars_default="${2}" _dispatch_fn="${3}"\
+		_group_name="${4}" _pkg_name="${5}" _restart_at="${6}" _workdir="${7}"\
+		_status_percentage="$((100 * ${EXP_PKG_DISPATCH_COUNT} + (${EXP_PKG_DISPATCH_COUNT_MAX} / 2)))";
+	if [ "${_status_percentage}" -gt 0 ]; then
+		_status_percentage="$((${_status_percentage} / ${EXP_PKG_DISPATCH_COUNT_MAX}))";
+	fi;
+	if "${_dispatch_fn}" start_pkg "${_group_name}" "${_pkg_name}" "$((${EXP_PKG_DISPATCH_COUNT}+1))" "${EXP_PKG_DISPATCH_COUNT_MAX}" "${_status_percentage}"; then
 		: $((EXP_PKG_DISPATCH_NJOBS+=1)); : $((EXP_PKG_DISPATCH_COUNT+=1)); EX_PKG_DISPATCH_WAIT="$(rtl_lconcat "${EX_PKG_DISPATCH_WAIT}" "${_pkg_name}")";
-		(trap "if [ \${?} -eq 0 ]; then							\
-			printf \"done %s %s\n\" \"${_group_name}\" \"${_pkg_name}\" >&3;	\
-		      else									\
-			printf \"fail %s %s\n\" \"${_group_name}\" \"${_pkg_name}\" >&3;	\
-			pkill -U "${$}";							\
+		(trap "if [ \${?} -eq 0 ]; then											\
+			printf \"done %s %s %d\n\" \"${_group_name}\" \"${_pkg_name}\" \"${EXP_PKG_DISPATCH_COUNT}\" >&3;	\
+		      else													\
+			printf \"fail %s %s %d\n\" \"${_group_name}\" \"${_pkg_name}\" \"${EXP_PKG_DISPATCH_COUNT}\" >&3;	\
+			pkill -U "${$}";											\
 		      fi;" EXIT HUP INT TERM USR1 USR2;
 		set +o errexit -o noglob -o nounset; BUILD_IS_PARENT=0; rtl_log_set_fname ""; rtl_log_set_no_attr 1;
 		if ex_pkg_env "${_build_steps_default}" "${_build_vars_default}"		\