-6.74% is the change from 445 to 415
Calculation steps:
[( 415 - 445 ) ÷ 445] x 100 = -6.74%
Formula
Percentage change = [(415 - 445) / 445] x 100
Subtract the new number by the original number
415 - 445 = -30
-30 ÷ 445 = -0.06741573033707865
-0.06741573033707865 x 100 = -6.74%