-71.59% is the change from 345 to 98
Calculation steps:
[( 98 - 345 ) ÷ 345] x 100 = -71.59%
Formula
Percentage change = [(98 - 345) / 345] x 100
Subtract the new number by the original number
98 - 345 = -247
-247 ÷ 345 = -0.7159420289855073
-0.7159420289855073 x 100 = -71.59%