-68.26% is the change from 230 to 73
Calculation steps:
[( 73 - 230 ) ÷ 230] x 100 = -68.26%
Formula
Percentage change = [(73 - 230) / 230] x 100
Subtract the new number by the original number
73 - 230 = -157
-157 ÷ 230 = -0.6826086956521739
-0.6826086956521739 x 100 = -68.26%