-70.09% is the change from 234 to 70
Calculation steps:
[( 70 - 234 ) ÷ 234] x 100 = -70.09%
Formula
Percentage change = [(70 - 234) / 234] x 100
Subtract the new number by the original number
70 - 234 = -164
-164 ÷ 234 = -0.7008547008547008
-0.7008547008547008 x 100 = -70.09%