-46.36% is the change from 921 to 494
Calculation steps:
[( 494 - 921 ) ÷ 921] x 100 = -46.36%
Formula
Percentage change = [(494 - 921) / 921] x 100
Subtract the new number by the original number
494 - 921 = -427
-427 ÷ 921 = -0.46362649294245384
-0.46362649294245384 x 100 = -46.36%