-69.88% is the change from 767 to 231
Calculation steps:
[( 231 - 767 ) ÷ 767] x 100 = -69.88%
Formula
Percentage change = [(231 - 767) / 767] x 100
Subtract the new number by the original number
231 - 767 = -536
-536 ÷ 767 = -0.6988265971316818
-0.6988265971316818 x 100 = -69.88%