-18.41% is the change from 793 to 647
Calculation steps:
[( 647 - 793 ) ÷ 793] x 100 = -18.41%
Formula
Percentage change = [(647 - 793) / 793] x 100
Subtract the new number by the original number
647 - 793 = -146
-146 ÷ 793 = -0.1841109709962169
-0.1841109709962169 x 100 = -18.41%