-13.46% is the change from 921 to 797
Calculation steps:
[( 797 - 921 ) ÷ 921] x 100 = -13.46%
Formula
Percentage change = [(797 - 921) / 921] x 100
Subtract the new number by the original number
797 - 921 = -124
-124 ÷ 921 = -0.13463626492942454
-0.13463626492942454 x 100 = -13.46%