-38.57% is the change from 70 to 43
Calculation steps:
[( 43 - 70 ) ÷ 70] x 100 = -38.57%
Formula
Percentage change = [(43 - 70) / 70] x 100
Subtract the new number by the original number
43 - 70 = -27
-27 ÷ 70 = -0.38571428571428573
-0.38571428571428573 x 100 = -38.57%