-16.75% is the change from 191 to 159
Calculation steps:
[( 159 - 191 ) ÷ 191] x 100 = -16.75%
Formula
Percentage change = [(159 - 191) / 191] x 100
Subtract the new number by the original number
159 - 191 = -32
-32 ÷ 191 = -0.16753926701570682
-0.16753926701570682 x 100 = -16.75%