-41.43% is the change from 70 to 41
Calculation steps:
[( 41 - 70 ) ÷ 70] x 100 = -41.43%
Formula
Percentage change = [(41 - 70) / 70] x 100
Subtract the new number by the original number
41 - 70 = -29
-29 ÷ 70 = -0.4142857142857143
-0.4142857142857143 x 100 = -41.43%