-90.14% is the change from 913 to 90
Calculation steps:
[( 90 - 913 ) ÷ 913] x 100 = -90.14%
Formula
Percentage change = [(90 - 913) / 913] x 100
Subtract the new number by the original number
90 - 913 = -823
-823 ÷ 913 = -0.9014238773274917
-0.9014238773274917 x 100 = -90.14%