-30.69% is the change from 101 to 70
Calculation steps:
[( 70 - 101 ) ÷ 101] x 100 = -30.69%
Formula
Percentage change = [(70 - 101) / 101] x 100
Subtract the new number by the original number
70 - 101 = -31
-31 ÷ 101 = -0.3069306930693069
-0.3069306930693069 x 100 = -30.69%