-65.71% is the change from 70 to 24
Calculation steps:
[( 24 - 70 ) ÷ 70] x 100 = -65.71%
Formula
Percentage change = [(24 - 70) / 70] x 100
Subtract the new number by the original number
24 - 70 = -46
-46 ÷ 70 = -0.6571428571428571
-0.6571428571428571 x 100 = -65.71%