-64% is the change from 600 to 216
Calculation steps:
[( 216 - 600 ) ÷ 600] x 100 = -64%
Formula
Percentage change = [(216 - 600) / 600] x 100
Subtract the new number by the original number
216 - 600 = -384
-384 ÷ 600 = -0.64
-0.64 x 100 = -64%
Example