-98.14% is the change from 215 to 4
Calculation steps:
[( 4 - 215 ) ÷ 215] x 100 = -98.14%
Formula
Percentage change = [(4 - 215) / 215] x 100
Subtract the new number by the original number
4 - 215 = -211
-211 ÷ 215 = -0.9813953488372092
-0.9813953488372092 x 100 = -98.14%