-63.63% is the change from 921 to 335
Calculation steps:
[( 335 - 921 ) ÷ 921] x 100 = -63.63%
Formula
Percentage change = [(335 - 921) / 921] x 100
Subtract the new number by the original number
335 - 921 = -586
-586 ÷ 921 = -0.6362649294245385
-0.6362649294245385 x 100 = -63.63%