-72.34% is the change from 423 to 117
Calculation steps:
[( 117 - 423 ) ÷ 423] x 100 = -72.34%
Formula
Percentage change = [(117 - 423) / 423] x 100
Subtract the new number by the original number
117 - 423 = -306
-306 ÷ 423 = -0.723404255319149
-0.723404255319149 x 100 = -72.34%