-11.93% is the change from 218 to 192
Calculation steps:
[( 192 - 218 ) ÷ 218] x 100 = -11.93%
Formula
Percentage change = [(192 - 218) / 218] x 100
Subtract the new number by the original number
192 - 218 = -26
-26 ÷ 218 = -0.11926605504587157
-0.11926605504587157 x 100 = -11.93%