-50.86% is the change from 987 to 485
Calculation steps:
[( 485 - 987 ) ÷ 987] x 100 = -50.86%
Formula
Percentage change = [(485 - 987) / 987] x 100
Subtract the new number by the original number
485 - 987 = -502
-502 ÷ 987 = -0.5086119554204661
-0.5086119554204661 x 100 = -50.86%