-49.78% is the change from 229 to 115
Calculation steps:
[( 115 - 229 ) ÷ 229] x 100 = -49.78%
Formula
Percentage change = [(115 - 229) / 229] x 100
Subtract the new number by the original number
115 - 229 = -114
-114 ÷ 229 = -0.4978165938864629
-0.4978165938864629 x 100 = -49.78%