-75.86% is the change from 816 to 197
Calculation steps:
[( 197 - 816 ) ÷ 816] x 100 = -75.86%
Formula
Percentage change = [(197 - 816) / 816] x 100
Subtract the new number by the original number
197 - 816 = -619
-619 ÷ 816 = -0.758578431372549
-0.758578431372549 x 100 = -75.86%