-69.57% is the change from 23 to 7
Calculation steps:
[( 7 - 23 ) ÷ 23] x 100 = -69.57%
Formula
Percentage change = [(7 - 23) / 23] x 100
Subtract the new number by the original number
7 - 23 = -16
-16 ÷ 23 = -0.6956521739130435
-0.6956521739130435 x 100 = -69.57%