-49.84% is the change from 921 to 462
Calculation steps:
[( 462 - 921 ) ÷ 921] x 100 = -49.84%
Formula
Percentage change = [(462 - 921) / 921] x 100
Subtract the new number by the original number
462 - 921 = -459
-459 ÷ 921 = -0.498371335504886
-0.498371335504886 x 100 = -49.84%