-7% is the change from 100 to 93
Calculation steps:
[( 93 - 100 ) ÷ 100] x 100 = -7%
Formula
Percentage change = [(93 - 100) / 100] x 100
Subtract the new number by the original number
93 - 100 = -7
-7 ÷ 100 = -0.07
-0.07 x 100 = -7%
Example