-1.05% is the change from 191 to 189
Calculation steps:
[( 189 - 191 ) ÷ 191] x 100 = -1.05%
Formula
Percentage change = [(189 - 191) / 191] x 100
Subtract the new number by the original number
189 - 191 = -2
-2 ÷ 191 = -0.010471204188481676
-0.010471204188481676 x 100 = -1.05%