-51.6% is the change from 940 to 455
Calculation steps:
[( 455 - 940 ) ÷ 940] x 100 = -51.6%
Formula
Percentage change = [(455 - 940) / 940] x 100
Subtract the new number by the original number
455 - 940 = -485
-485 ÷ 940 = -0.5159574468085106
-0.5159574468085106 x 100 = -51.6%