-95% is the change from 260 to 13
Calculation steps:
[( 13 - 260 ) ÷ 260] x 100 = -95%
Formula
Percentage change = [(13 - 260) / 260] x 100
Subtract the new number by the original number
13 - 260 = -247
-247 ÷ 260 = -0.95
-0.95 x 100 = -95%
Example