-19.85% is the change from 816 to 654
Calculation steps:
[( 654 - 816 ) ÷ 816] x 100 = -19.85%
Formula
Percentage change = [(654 - 816) / 816] x 100
Subtract the new number by the original number
654 - 816 = -162
-162 ÷ 816 = -0.19852941176470587
-0.19852941176470587 x 100 = -19.85%