-11.52% is the change from 217 to 192
Calculation steps:
[( 192 - 217 ) ÷ 217] x 100 = -11.52%
Formula
Percentage change = [(192 - 217) / 217] x 100
Subtract the new number by the original number
192 - 217 = -25
-25 ÷ 217 = -0.1152073732718894
-0.1152073732718894 x 100 = -11.52%