-89% is the change from 609 to 67
Calculation steps:
[( 67 - 609 ) ÷ 609] x 100 = -89%
Formula
Percentage change = [(67 - 609) / 609] x 100
Subtract the new number by the original number
67 - 609 = -542
-542 ÷ 609 = -0.8899835796387521
-0.8899835796387521 x 100 = -89%