-73.11% is the change from 915 to 246
Calculation steps:
[( 246 - 915 ) ÷ 915] x 100 = -73.11%
Formula
Percentage change = [(246 - 915) / 915] x 100
Subtract the new number by the original number
246 - 915 = -669
-669 ÷ 915 = -0.7311475409836066
-0.7311475409836066 x 100 = -73.11%