-49.54% is the change from 987 to 498
Calculation steps:
[( 498 - 987 ) ÷ 987] x 100 = -49.54%
Formula
Percentage change = [(498 - 987) / 987] x 100
Subtract the new number by the original number
498 - 987 = -489
-489 ÷ 987 = -0.49544072948328266
-0.49544072948328266 x 100 = -49.54%