-65.58% is the change from 921 to 317
Calculation steps:
[( 317 - 921 ) ÷ 921] x 100 = -65.58%
Formula
Percentage change = [(317 - 921) / 921] x 100
Subtract the new number by the original number
317 - 921 = -604
-604 ÷ 921 = -0.6558089033659066
-0.6558089033659066 x 100 = -65.58%