math - Working out a percentage of a value -

i'm trying workout equity stake in investment. want plug these numbers demo application i'm building in java script. it's math part i'm having problem working out.

i have been giving numbers deal not sure how came equity number.

so here apps numbers used.

• total value of company $800,000
  • investors 60%
  • partner 40%
• yearly gross profit = $1,560,000
• yearly net profit = $624,000

so worked out if investor put in $133,333 equity amount of 0.1 , yearly return of 62,400

ok 0.1 x 624,000 = 62,400 how did 0.1 value putting in $133,333

for example lets had filed user inputs amount of 80,000 equity value given above numbers.

if can figure part out can add them variables in js , display accordingly.

updated:

there 1 partner 40% other number of investors amount make 60% of rest of equity.

thanks

from numbers have provided $800,000 must value of investors 60% stake not of whole company.

the current investors looking sell 1 sixth of total stake equal 10% of company $133,333.