-49.85% is the change from 981 to 492
Calculation steps:
[( 492 - 981 ) ÷ 981] x 100 = -49.85%
Formula
Percentage change = [(492 - 981) / 981] x 100
Subtract the new number by the original number
492 - 981 = -489
-489 ÷ 981 = -0.4984709480122324
-0.4984709480122324 x 100 = -49.85%