-34.38% is the change from 928 to 609
Calculation steps:
[( 609 - 928 ) ÷ 928] x 100 = -34.38%
Formula
Percentage change = [(609 - 928) / 928] x 100
Subtract the new number by the original number
609 - 928 = -319
-319 ÷ 928 = -0.34375
-0.34375 x 100 = -34.38%