-53.21% is the change from 218 to 102
Calculation steps:
[( 102 - 218 ) ÷ 218] x 100 = -53.21%
Formula
Percentage change = [(102 - 218) / 218] x 100
Subtract the new number by the original number
102 - 218 = -116
-116 ÷ 218 = -0.5321100917431193
-0.5321100917431193 x 100 = -53.21%