-7.28% is the change from 206 to 191
Calculation steps:
[( 191 - 206 ) ÷ 206] x 100 = -7.28%
Formula
Percentage change = [(191 - 206) / 206] x 100
Subtract the new number by the original number
191 - 206 = -15
-15 ÷ 206 = -0.07281553398058252
-0.07281553398058252 x 100 = -7.28%