I give a simple calculation, how the red island shop can make money on the food for paying the 50 shareholders.

1 person return = RM300 per month
50 persons mean = RM15,000 per month
voucher RM100 per person means = 50 persons X RM100 = RM5,000
shop rental = RM5,000
man power = RM1,000 (one staff) maximum 10 staffs = RM10,000
water and electric per month = RM1,500

total red island cafe need to make profit per month  = RM15,000 + RM5,000 + RM5,000 + RM10,000 + RM1,500 = RM36,500

for example pandan indah red island cafe

12 tables

assuming (full house) from 10am - 10pm all the tables are occupy by 4 persons
1 person spend about RM8 for one hour
48 persons spend about RM384 per hour

from 10am to 10pm
RM384 x 10 hours = RM3,840 sale
one month means RM3,840 x 30days = RM115,200 sale provided every day full house

if only 50% customer per month (not full house) means RM RM115,200 / 2 = RM57,600

how about only 30% of customers per day for a month = RM 34,560

Do u think they continue pay you ????