-51.7% is the change from 940 to 454
Calculation steps:
[( 454 - 940 ) ÷ 940] x 100 = -51.7%
Formula
Percentage change = [(454 - 940) / 940] x 100
Subtract the new number by the original number
454 - 940 = -486
-486 ÷ 940 = -0.5170212765957447
-0.5170212765957447 x 100 = -51.7%