-72.24% is the change from 915 to 254
Calculation steps:
[( 254 - 915 ) ÷ 915] x 100 = -72.24%
Formula
Percentage change = [(254 - 915) / 915] x 100
Subtract the new number by the original number
254 - 915 = -661
-661 ÷ 915 = -0.7224043715846995
-0.7224043715846995 x 100 = -72.24%