-90.91% is the change from 187 to 17
Calculation steps:
[( 17 - 187 ) ÷ 187] x 100 = -90.91%
Formula
Percentage change = [(17 - 187) / 187] x 100
Subtract the new number by the original number
17 - 187 = -170
-170 ÷ 187 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%