# 1.6.16 TICCS® contributions

**TICCS contributions to QoQ total return**

For a given TICCS® pillar (e.g. business model), the contribution of a TICCS® category within it (e.g., contracted)at time *t* is computed as:

where:

is the weight of asset *i* at time *t*.

is the QoQ total returns of asset *i* at time *t*.

*n* is the number of constituents in that TICCS® category.

**TICCS contributions to YoY total return**

Just like the QoQ index total returns are compounded over 4 quarters to get to the YoY index total returns, the QoQ contribution for a given TICCS® category is compounded using the index QoQ index total returns to get to the YoY contributions.

where:

is the QoQ total returns of the index at time *t.*

**Contributions expressed as percentages**

The analytics described above are in absolute terms. Adding all the contributions across the categories of a TICCS® pillar results in the index total returns. However, they can also be expressed in percentage terms:

The same can be done with YoY contribution.