-37.06% is the change from 170 to 107
Calculation steps:
[( 107 - 170 ) ÷ 170] x 100 = -37.06%
Formula
Percentage change = [(107 - 170) / 170] x 100
Subtract the new number by the original number
107 - 170 = -63
-63 ÷ 170 = -0.37058823529411766
-0.37058823529411766 x 100 = -37.06%