-49.62% is the change from 260 to 131
Calculation steps:
[( 131 - 260 ) ÷ 260] x 100 = -49.62%
Formula
Percentage change = [(131 - 260) / 260] x 100
Subtract the new number by the original number
131 - 260 = -129
-129 ÷ 260 = -0.49615384615384617
-0.49615384615384617 x 100 = -49.62%