-50.27% is the change from 913 to 454
Calculation steps:
[( 454 - 913 ) ÷ 913] x 100 = -50.27%
Formula
Percentage change = [(454 - 913) / 913] x 100
Subtract the new number by the original number
454 - 913 = -459
-459 ÷ 913 = -0.5027382256297919
-0.5027382256297919 x 100 = -50.27%