-66.16% is the change from 591 to 200
Calculation steps:
[( 200 - 591 ) ÷ 591] x 100 = -66.16%
Formula
Percentage change = [(200 - 591) / 591] x 100
Subtract the new number by the original number
200 - 591 = -391
-391 ÷ 591 = -0.6615905245346869
-0.6615905245346869 x 100 = -66.16%