-46.13% is the change from 813 to 438
Calculation steps:
[( 438 - 813 ) ÷ 813] x 100 = -46.13%
Formula
Percentage change = [(438 - 813) / 813] x 100
Subtract the new number by the original number
438 - 813 = -375
-375 ÷ 813 = -0.4612546125461255
-0.4612546125461255 x 100 = -46.13%