-74.86% is the change from 919 to 231
Calculation steps:
[( 231 - 919 ) ÷ 919] x 100 = -74.86%
Formula
Percentage change = [(231 - 919) / 919] x 100
Subtract the new number by the original number
231 - 919 = -688
-688 ÷ 919 = -0.7486398258977149
-0.7486398258977149 x 100 = -74.86%