ProgressPercent. As parameters option beginning, end, seconds and message text.

progress_percent.sh

#!/bin/bash		
		# Type script: Shell
		# Program: Progress percent
		# Description: Shell script function to demonstrate a process according with percentage inserted seconds.
		# Version: 1.0.0
		#
		#------------------------------------------Using --------------------------------------------
		# _PROGRESS_PERCENT "begin_percent" "end_percent" "seconds_time_of_progress" "message"
		# 
		# NOTE: For cancel process, using: Ctrl+C
		#
		#--------------------------------------------------------------------------------------------
		# Author: William C. Canin <http://williamcanin.com, https://github.com/williamcanin>
		# LICENSE: MIT
		# The MIT License (MIT)
		# Copyright (c) 2015 William C. Canin 
		#
		# Permission is hereby granted, free of charge, to any person obtaining a copy
		# of this software and associated documentation files (the "Software"), to deal
		# in the Software without restriction, including without limitation the rights
		# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
		# copies of the Software, and to permit persons to whom the Software is
		# furnished to do so, subject to the following conditions:

		# The above copyright notice and this permission notice shall be included in all
		# copies or substantial portions of the Software.

		# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
		# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
		# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
		# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
		# SOFTWARE.
		#--------------------------------------------------------------------------------------------

# Colors
NONE='\033[00m'
RED='\033[01;31m'
BLUE='\e[34m'
GREEN='\033[01;32m'
YELLOW='\033[01;33m'
CYAN='\033[01;36m'
WHITE='\033[01;37m'
BOLD='\033[1m'
MOVE_CURSOR_LEFT4="\033[4D"

function _PROGRESS_PERCENT(){
	BEGIN_PERCENT=$1
	END_PERCENT=$2
	SECONDS=$3
	PROGRESS=$END_PERCENT/$SECONDS
	tput civis
	printf "\n"
	printf "$4\n"
	for (( i=$BEGIN_PERCENT; i<=$END_PERCENT ; i=$i+$PROGRESS )); do
		printf "${MOVE_CURSOR_LEFT4}${YELLOW}${BOLD}$i${NONE}"
  		echo -ne "${YELLOW}%${NONE}"
   		sleep 1
	done
	tput cnorm
	printf "${MOVE_CURSOR_LEFT4}"
	printf "${YELLOW}$END_PERCENT%%${NONE}"
	printf "\012\012"
}

#Start example
_PROGRESS_PERCENT "0" "100" "4" "Processing: "