-62.65% is the change from 921 to 344
Calculation steps:
[( 344 - 921 ) ÷ 921] x 100 = -62.65%
Formula
Percentage change = [(344 - 921) / 921] x 100
Subtract the new number by the original number
344 - 921 = -577
-577 ÷ 921 = -0.6264929424538545
-0.6264929424538545 x 100 = -62.65%