-93.75% is the change from 16 to 1
Calculation steps:
[( 1 - 16 ) ÷ 16] x 100 = -93.75%
Formula
Percentage change = [(1 - 16) / 16] x 100
Subtract the new number by the original number
1 - 16 = -15
-15 ÷ 16 = -0.9375
-0.9375 x 100 = -93.75%
Example