-18.04% is the change from 194 to 159
Calculation steps:
[( 159 - 194 ) ÷ 194] x 100 = -18.04%
Formula
Percentage change = [(159 - 194) / 194] x 100
Subtract the new number by the original number
159 - 194 = -35
-35 ÷ 194 = -0.18041237113402062
-0.18041237113402062 x 100 = -18.04%