-49.59% is the change from 986 to 497
Calculation steps:
[( 497 - 986 ) ÷ 986] x 100 = -49.59%
Formula
Percentage change = [(497 - 986) / 986] x 100
Subtract the new number by the original number
497 - 986 = -489
-489 ÷ 986 = -0.49594320486815413
-0.49594320486815413 x 100 = -49.59%