-2.2% is the change from 455 to 445
Calculation steps:
[( 445 - 455 ) ÷ 455] x 100 = -2.2%
Formula
Percentage change = [(445 - 455) / 455] x 100
Subtract the new number by the original number
445 - 455 = -10
-10 ÷ 455 = -0.02197802197802198
-0.02197802197802198 x 100 = -2.2%