-95.19% is the change from 270 to 13
Calculation steps:
[( 13 - 270 ) ÷ 270] x 100 = -95.19%
Formula
Percentage change = [(13 - 270) / 270] x 100
Subtract the new number by the original number
13 - 270 = -257
-257 ÷ 270 = -0.9518518518518518
-0.9518518518518518 x 100 = -95.19%