-98.15% is the change from 216 to 4
Calculation steps:
[( 4 - 216 ) ÷ 216] x 100 = -98.15%
Formula
Percentage change = [(4 - 216) / 216] x 100
Subtract the new number by the original number
4 - 216 = -212
-212 ÷ 216 = -0.9814814814814815
-0.9814814814814815 x 100 = -98.15%