-27.38% is the change from 913 to 663
Calculation steps:
[( 663 - 913 ) ÷ 913] x 100 = -27.38%
Formula
Percentage change = [(663 - 913) / 913] x 100
Subtract the new number by the original number
663 - 913 = -250
-250 ÷ 913 = -0.2738225629791895
-0.2738225629791895 x 100 = -27.38%