-86.24% is the change from 218 to 30
Calculation steps:
[( 30 - 218 ) ÷ 218] x 100 = -86.24%
Formula
Percentage change = [(30 - 218) / 218] x 100
Subtract the new number by the original number
30 - 218 = -188
-188 ÷ 218 = -0.8623853211009175
-0.8623853211009175 x 100 = -86.24%