-99.56% is the change from 913 to 4
Calculation steps:
[( 4 - 913 ) ÷ 913] x 100 = -99.56%
Formula
Percentage change = [(4 - 913) / 913] x 100
Subtract the new number by the original number
4 - 913 = -909
-909 ÷ 913 = -0.9956188389923329
-0.9956188389923329 x 100 = -99.56%