-97.42% is the change from 659 to 17
Calculation steps:
[( 17 - 659 ) ÷ 659] x 100 = -97.42%
Formula
Percentage change = [(17 - 659) / 659] x 100
Subtract the new number by the original number
17 - 659 = -642
-642 ÷ 659 = -0.9742033383915023
-0.9742033383915023 x 100 = -97.42%