-48.73% is the change from 987 to 506
Calculation steps:
[( 506 - 987 ) ÷ 987] x 100 = -48.73%
Formula
Percentage change = [(506 - 987) / 987] x 100
Subtract the new number by the original number
506 - 987 = -481
-481 ÷ 987 = -0.48733535967578523
-0.48733535967578523 x 100 = -48.73%