ACOS From 38% to 29% on Flat Spend. The Efficiency Unlock.

01 The setup

This brand sells metallic and magnetic stud finders. The account had room to spend more. It had not earned it yet.

02 The problem

ACOS was 38.7%, well above category norms. TACOS at 19.1%, ROAS at 2.59x. PPC sales were $6,031 a week against $2,337 of spend. Funding inefficiency at higher volume is a faster way to lose a client than to grow one.

03 The framework

We ran a sequence we call The Flat-Spend Efficiency Unlock. Total weekly spend stayed locked at $2,337. Inside that budget, money moved from the bleeding targets to the converting ones, and the campaigns that were not doing work got cut.

04 The moves we made

Detect

Identified the bleeding targets across the account by working back from the converting baselines, not from total spend share.

Boost

Increased bids on the campaigns with strong conversion history, putting more capital behind the proven winners.

Cut

Paused or sharply reduced bids on non-converting targets and underperforming keywords.

Hold

Held total weekly spend flat at $2,337. No budget increase requested or needed for the result.

05 The result

In one week, ACOS dropped from 38.7% to 29.3%, a 9.4-point improvement. TACOS fell from 19.1% to 15.8%. ROAS climbed from 2.59x to 3.41x. PPC sales grew from $6,031 to $7,977, adding $1,946 of weekly revenue on zero additional spend.

Holding spend flat is what makes this result count. Any account can grow revenue by adding budget. The harder question is whether the same budget can produce more. When the answer is yes, the account moves into a higher-spend phase with unit economics already proven.

06 What this means for operators like you

If you are early in a relationship and the impulse is to ask for more budget, hold it flat for a cycle and route money inside the existing total. Boost the winners, cut the bleeders, leave the headline spend untouched.