Run a store for 30 days. In 30 seconds.

Pick a product, set your price and ad budget, and watch a month of sales, ad spend and profit play out — then change one thing and run it again.

Product

Your price $35Shoppers feel it's worth about $39

Daily ad budget $50

Ad creative

Store page

Starting stock 150 units$1,350 of cash tied up in stock

Margin per sale $23Break-even ROAS 1.50×

Day0/30

Orders0

Revenue$0

Ad spend$0

Profit$0

Launching your store…

Day-by-day table

Day	Orders	Revenue so far	Ad spend so far	Profit so far	Stock left
1	1	$35	$50	−$27	149
2	2	$105	$100	−$30	147
3	2	$175	$150	−$34	145
4	2	$245	$200	−$37	143
5	2	$315	$250	−$40	141
6	3	$420	$300	−$21	138
7	2	$490	$350	−$24	136
8	2	$560	$400	−$27	134
9	2	$630	$450	−$31	132
10	2	$700	$500	−$34	130
11	1	$735	$550	−$61	129
12	1	$770	$600	−$88	128
13	2	$840	$650	−$91	126
14	2	$910	$700	−$95	124
15	2	$980	$750	−$98	122
16	2	$1,050	$800	−$101	120
17	2	$1,120	$850	−$105	118
18	2	$1,190	$900	−$108	116
19	2	$1,260	$950	−$112	114
20	2	$1,330	$1,000	−$115	112
21	1	$1,365	$1,050	−$142	111
22	2	$1,435	$1,100	−$145	109
23	2	$1,505	$1,150	−$149	107
24	2	$1,575	$1,200	−$152	105
25	1	$1,610	$1,250	−$179	104
26	1	$1,645	$1,300	−$206	103
27	1	$1,680	$1,350	−$232	102
28	2	$1,750	$1,400	−$236	100
29	1	$1,785	$1,450	−$262	99
30	1	$1,820	$1,500	−$289	98

Educational simulation with simplified, made-up market numbers — not a forecast of real results.

WHAT THE NUMBERS TEACH

Three lessons most new store owners learn the expensive way.

The Ecommerce arena turns each one into a skill: finding products, pricing, ads that convert, and scaling without losing money.

BREAK-EVEN ROAS

Know your number before you spend.

Price, product cost, card fees and refunds decide how many dollars of sales each dollar of ads must bring back. Below that line, more budget only means bigger losses.

AD FATIGUE

Every creative wears out.

The same audience sees the same ad again and again, clicks drop and every sale costs more. Winners refresh their creative before the numbers turn.

STOCK IS CASH

Too little stops sales. Too much sits on your cash.

Run out and your ads stop working for you; over-order and your money waits on a shelf. Good operators plan stock from their real daily sales.

Now do it with real products.

The first lesson of the Ecommerce arena is free — video, graded exercise and Coach Cobra.

Start the first lesson free