-62.84% is the change from 218 to 81
Calculation steps:
[( 81 - 218 ) ÷ 218] x 100 = -62.84%
Formula
Percentage change = [(81 - 218) / 218] x 100
Subtract the new number by the original number
81 - 218 = -137
-137 ÷ 218 = -0.6284403669724771
-0.6284403669724771 x 100 = -62.84%