-65.07% is the change from 919 to 321
Calculation steps:
[( 321 - 919 ) ÷ 919] x 100 = -65.07%
Formula
Percentage change = [(321 - 919) / 919] x 100
Subtract the new number by the original number
321 - 919 = -598
-598 ÷ 919 = -0.6507072905331882
-0.6507072905331882 x 100 = -65.07%