-31.64% is the change from 275 to 188
Calculation steps:
[( 188 - 275 ) ÷ 275] x 100 = -31.64%
Formula
Percentage change = [(188 - 275) / 275] x 100
Subtract the new number by the original number
188 - 275 = -87
-87 ÷ 275 = -0.31636363636363635
-0.31636363636363635 x 100 = -31.64%