Surf Excel Matic Liquid Detergent
Analysis Verdict: HUL has introduced a hidden net weight reduction of 5.0% since 2021 while maintaining the price tag, leading to a true unit cost inflation of 16.3% per unit value (₹/ml).
Shrinkflation Score
Calculated based on cumulative volume contraction versus historical baseline stability indexes.
Cumulative Personal Loss Calculator
If you purchase this product regularly, calculate the silent financial volume loss you have accumulated since 2021 due to unannounced shrinkflation:
Longitudinal Weight vs Price Timeline (Divergence)
Inspect how the physical quantity scales down sequentially while the retail price curve stays level or rises.
True Unit Cost Inflation Timeline (₹ per 100ml)
The true index tracking the cost-efficiency of the purchase. Represents total rupees paid per 100 units of physical volume.
Documented Longitudinal Registry Log
| Timeline / Origin | MRP (₹) | Declared Weight | True Unit Cost (₹/ml) | Historical Change | Archive Evidence Source |
|---|---|---|---|---|---|
| 2021 | ₹380.00 | 1000ml | ₹0.3800 | Baseline | Amazon listing |
| 2022 | ₹380.00 | 950ml | ₹0.4000 | -5.0% | Estimated (HUL shrinkflation) |
| 2023 | ₹400.00 | 950ml | ₹0.4211 | -5.0% | Estimated |
| 2024 | ₹420.00 | 950ml | ₹0.4421 | -5.0% | Estimated |
| 2025 | ₹420.00 | 950ml | ₹0.4421 | -5.0% | Estimated |
| 2026 | ₹420.00 | 950ml | ₹0.4421 | -5.0% | Current estimate |
Forecasting Engine Projections
Based on the documented longitudinal slope of -7.14ml/year, the forecasting linear regression projects:
This projection is an algorithmic extrapolation based on current regression slopes. Actual retail quantities may vary based on future manufacturing pivots.
Prescriptive Recommendations (Better Alternatives)
Our KNN similarity clustering recommends switching to these stable-volume alternatives within the same category to maximize buying power:
No high-integrity alternatives documented in this category.