-69.47% is the change from 321 to 98
Calculation steps:
[( 98 - 321 ) ÷ 321] x 100 = -69.47%
Formula
Percentage change = [(98 - 321) / 321] x 100
Subtract the new number by the original number
98 - 321 = -223
-223 ÷ 321 = -0.6947040498442367
-0.6947040498442367 x 100 = -69.47%