-66.15% is the change from 585 to 198
Calculation steps:
[( 198 - 585 ) ÷ 585] x 100 = -66.15%
Formula
Percentage change = [(198 - 585) / 585] x 100
Subtract the new number by the original number
198 - 585 = -387
-387 ÷ 585 = -0.6615384615384615
-0.6615384615384615 x 100 = -66.15%