-66.1% is the change from 587 to 199
Calculation steps:
[( 199 - 587 ) ÷ 587] x 100 = -66.1%
Formula
Percentage change = [(199 - 587) / 587] x 100
Subtract the new number by the original number
199 - 587 = -388
-388 ÷ 587 = -0.6609880749574105
-0.6609880749574105 x 100 = -66.1%