-11.18% is the change from 921 to 818
Calculation steps:
[( 818 - 921 ) ÷ 921] x 100 = -11.18%
Formula
Percentage change = [(818 - 921) / 921] x 100
Subtract the new number by the original number
818 - 921 = -103
-103 ÷ 921 = -0.11183496199782844
-0.11183496199782844 x 100 = -11.18%