-49.35% is the change from 231 to 117
Calculation steps:
[( 117 - 231 ) ÷ 231] x 100 = -49.35%
Formula
Percentage change = [(117 - 231) / 231] x 100
Subtract the new number by the original number
117 - 231 = -114
-114 ÷ 231 = -0.4935064935064935
-0.4935064935064935 x 100 = -49.35%