-47.92% is the change from 816 to 425
Calculation steps:
[( 425 - 816 ) ÷ 816] x 100 = -47.92%
Formula
Percentage change = [(425 - 816) / 816] x 100
Subtract the new number by the original number
425 - 816 = -391
-391 ÷ 816 = -0.4791666666666667
-0.4791666666666667 x 100 = -47.92%