-79.02% is the change from 915 to 192
Calculation steps:
[( 192 - 915 ) ÷ 915] x 100 = -79.02%
Formula
Percentage change = [(192 - 915) / 915] x 100
Subtract the new number by the original number
192 - 915 = -723
-723 ÷ 915 = -0.7901639344262295
-0.7901639344262295 x 100 = -79.02%