-89.8% is the change from 657 to 67
Calculation steps:
[( 67 - 657 ) ÷ 657] x 100 = -89.8%
Formula
Percentage change = [(67 - 657) / 657] x 100
Subtract the new number by the original number
67 - 657 = -590
-590 ÷ 657 = -0.898021308980213
-0.898021308980213 x 100 = -89.8%