-34.64% is the change from 921 to 602
Calculation steps:
[( 602 - 921 ) ÷ 921] x 100 = -34.64%
Formula
Percentage change = [(602 - 921) / 921] x 100
Subtract the new number by the original number
602 - 921 = -319
-319 ÷ 921 = -0.3463626492942454
-0.3463626492942454 x 100 = -34.64%