-36.7% is the change from 921 to 583
Calculation steps:
[( 583 - 921 ) ÷ 921] x 100 = -36.7%
Formula
Percentage change = [(583 - 921) / 921] x 100
Subtract the new number by the original number
583 - 921 = -338
-338 ÷ 921 = -0.36699239956568946
-0.36699239956568946 x 100 = -36.7%