-70.15% is the change from 67 to 20
Calculation steps:
[( 20 - 67 ) ÷ 67] x 100 = -70.15%
Formula
Percentage change = [(20 - 67) / 67] x 100
Subtract the new number by the original number
20 - 67 = -47
-47 ÷ 67 = -0.7014925373134329
-0.7014925373134329 x 100 = -70.15%