-63.52% is the change from 921 to 336
Calculation steps:
[( 336 - 921 ) ÷ 921] x 100 = -63.52%
Formula
Percentage change = [(336 - 921) / 921] x 100
Subtract the new number by the original number
336 - 921 = -585
-585 ÷ 921 = -0.6351791530944625
-0.6351791530944625 x 100 = -63.52%