-19.73% is the change from 816 to 655
Calculation steps:
[( 655 - 816 ) ÷ 816] x 100 = -19.73%
Formula
Percentage change = [(655 - 816) / 816] x 100
Subtract the new number by the original number
655 - 816 = -161
-161 ÷ 816 = -0.19730392156862744
-0.19730392156862744 x 100 = -19.73%