-50.19% is the change from 263 to 131
Calculation steps:
[( 131 - 263 ) ÷ 263] x 100 = -50.19%
Formula
Percentage change = [(131 - 263) / 263] x 100
Subtract the new number by the original number
131 - 263 = -132
-132 ÷ 263 = -0.5019011406844106
-0.5019011406844106 x 100 = -50.19%