-6.47% is the change from 201 to 188
Calculation steps:
[( 188 - 201 ) ÷ 201] x 100 = -6.47%
Formula
Percentage change = [(188 - 201) / 201] x 100
Subtract the new number by the original number
188 - 201 = -13
-13 ÷ 201 = -0.06467661691542288
-0.06467661691542288 x 100 = -6.47%