-97.06% is the change from 238 to 7
Calculation steps:
[( 7 - 238 ) ÷ 238] x 100 = -97.06%
Formula
Percentage change = [(7 - 238) / 238] x 100
Subtract the new number by the original number
7 - 238 = -231
-231 ÷ 238 = -0.9705882352941176
-0.9705882352941176 x 100 = -97.06%