-71.18% is the change from 340 to 98
Calculation steps:
[( 98 - 340 ) ÷ 340] x 100 = -71.18%
Formula
Percentage change = [(98 - 340) / 340] x 100
Subtract the new number by the original number
98 - 340 = -242
-242 ÷ 340 = -0.711764705882353
-0.711764705882353 x 100 = -71.18%