-9.18% is the change from 207 to 188
Calculation steps:
[( 188 - 207 ) ÷ 207] x 100 = -9.18%
Formula
Percentage change = [(188 - 207) / 207] x 100
Subtract the new number by the original number
188 - 207 = -19
-19 ÷ 207 = -0.09178743961352658
-0.09178743961352658 x 100 = -9.18%