-49.24% is the change from 987 to 501
Calculation steps:
[( 501 - 987 ) ÷ 987] x 100 = -49.24%
Formula
Percentage change = [(501 - 987) / 987] x 100
Subtract the new number by the original number
501 - 987 = -486
-486 ÷ 987 = -0.49240121580547114
-0.49240121580547114 x 100 = -49.24%