-22.15% is the change from 921 to 717
Calculation steps:
[( 717 - 921 ) ÷ 921] x 100 = -22.15%
Formula
Percentage change = [(717 - 921) / 921] x 100
Subtract the new number by the original number
717 - 921 = -204
-204 ÷ 921 = -0.22149837133550487
-0.22149837133550487 x 100 = -22.15%