-94.43% is the change from 305 to 17
Calculation steps:
[( 17 - 305 ) ÷ 305] x 100 = -94.43%
Formula
Percentage change = [(17 - 305) / 305] x 100
Subtract the new number by the original number
17 - 305 = -288
-288 ÷ 305 = -0.9442622950819672
-0.9442622950819672 x 100 = -94.43%