-83.51% is the change from 97 to 16
Calculation steps:
[( 16 - 97 ) ÷ 97] x 100 = -83.51%
Formula
Percentage change = [(16 - 97) / 97] x 100
Subtract the new number by the original number
16 - 97 = -81
-81 ÷ 97 = -0.8350515463917526
-0.8350515463917526 x 100 = -83.51%