Simulink data type conversion

I'm reading an IMU on the arduino board with a s-function block in simulink by double or single data types though I just need 2 decimals precision as ("xyz.ab").I want to improve the performance with changing data types and wonder that;

is there a way to decrease the precision to 2 decimals in s-function block or by adding/using any other conversion blocks/codes in the simulink aside from using fixed-point toolbox?