-54.59% is the change from 218 to 99
Calculation steps:
[( 99 - 218 ) ÷ 218] x 100 = -54.59%
Formula
Percentage change = [(99 - 218) / 218] x 100
Subtract the new number by the original number
99 - 218 = -119
-119 ÷ 218 = -0.5458715596330275
-0.5458715596330275 x 100 = -54.59%