-90.4% is the change from 177 to 17
Calculation steps:
[( 17 - 177 ) ÷ 177] x 100 = -90.4%
Formula
Percentage change = [(17 - 177) / 177] x 100
Subtract the new number by the original number
17 - 177 = -160
-160 ÷ 177 = -0.903954802259887
-0.903954802259887 x 100 = -90.4%