-50% is the change from 526 to 263
Calculation steps:
[( 263 - 526 ) ÷ 526] x 100 = -50%
Formula
Percentage change = [(263 - 526) / 526] x 100
Subtract the new number by the original number
263 - 526 = -263
-263 ÷ 526 = -0.5
-0.5 x 100 = -50%
Example