-45.17% is the change from 817 to 448
Calculation steps:
[( 448 - 817 ) ÷ 817] x 100 = -45.17%
Formula
Percentage change = [(448 - 817) / 817] x 100
Subtract the new number by the original number
448 - 817 = -369
-369 ÷ 817 = -0.45165238678090575
-0.45165238678090575 x 100 = -45.17%