-79.5% is the change from 478 to 98
Calculation steps:
[( 98 - 478 ) ÷ 478] x 100 = -79.5%
Formula
Percentage change = [(98 - 478) / 478] x 100
Subtract the new number by the original number
98 - 478 = -380
-380 ÷ 478 = -0.7949790794979079
-0.7949790794979079 x 100 = -79.5%