-74.2% is the change from 659 to 170
Calculation steps:
[( 170 - 659 ) ÷ 659] x 100 = -74.2%
Formula
Percentage change = [(170 - 659) / 659] x 100
Subtract the new number by the original number
170 - 659 = -489
-489 ÷ 659 = -0.7420333839150227
-0.7420333839150227 x 100 = -74.2%