-96.37% is the change from 413 to 15
Calculation steps:
[( 15 - 413 ) ÷ 413] x 100 = -96.37%
Formula
Percentage change = [(15 - 413) / 413] x 100
Subtract the new number by the original number
15 - 413 = -398
-398 ÷ 413 = -0.9636803874092009
-0.9636803874092009 x 100 = -96.37%