-29.3% is the change from 587 to 415
Calculation steps:
[( 415 - 587 ) ÷ 587] x 100 = -29.3%
Formula
Percentage change = [(415 - 587) / 587] x 100
Subtract the new number by the original number
415 - 587 = -172
-172 ÷ 587 = -0.293015332197615
-0.293015332197615 x 100 = -29.3%