-83.88% is the change from 614 to 99
Calculation steps:
[( 99 - 614 ) ÷ 614] x 100 = -83.88%
Formula
Percentage change = [(99 - 614) / 614] x 100
Subtract the new number by the original number
99 - 614 = -515
-515 ÷ 614 = -0.8387622149837134
-0.8387622149837134 x 100 = -83.88%