-67% is the change from 600 to 198
Calculation steps:
[( 198 - 600 ) ÷ 600] x 100 = -67%
Formula
Percentage change = [(198 - 600) / 600] x 100
Subtract the new number by the original number
198 - 600 = -402
-402 ÷ 600 = -0.67
-0.67 x 100 = -67%
Example