-98.14% is the change from 591 to 11
Calculation steps:
[( 11 - 591 ) ÷ 591] x 100 = -98.14%
Formula
Percentage change = [(11 - 591) / 591] x 100
Subtract the new number by the original number
11 - 591 = -580
-580 ÷ 591 = -0.9813874788494078
-0.9813874788494078 x 100 = -98.14%