-84.5% is the change from 600 to 93
Calculation steps:
[( 93 - 600 ) ÷ 600] x 100 = -84.5%
Formula
Percentage change = [(93 - 600) / 600] x 100
Subtract the new number by the original number
93 - 600 = -507
-507 ÷ 600 = -0.845
-0.845 x 100 = -84.5%
Example