-38.83% is the change from 188 to 115
Calculation steps:
[( 115 - 188 ) ÷ 188] x 100 = -38.83%
Formula
Percentage change = [(115 - 188) / 188] x 100
Subtract the new number by the original number
115 - 188 = -73
-73 ÷ 188 = -0.3882978723404255
-0.3882978723404255 x 100 = -38.83%