-63.16% is the change from 190 to 70
Calculation steps:
[( 70 - 190 ) ÷ 190] x 100 = -63.16%
Formula
Percentage change = [(70 - 190) / 190] x 100
Subtract the new number by the original number
70 - 190 = -120
-120 ÷ 190 = -0.631578947368421
-0.631578947368421 x 100 = -63.16%