-51.39% is the change from 934 to 454
Calculation steps:
[( 454 - 934 ) ÷ 934] x 100 = -51.39%
Formula
Percentage change = [(454 - 934) / 934] x 100
Subtract the new number by the original number
454 - 934 = -480
-480 ÷ 934 = -0.5139186295503212
-0.5139186295503212 x 100 = -51.39%