-64.65% is the change from 993 to 351
Calculation steps:
[( 351 - 993 ) ÷ 993] x 100 = -64.65%
Formula
Percentage change = [(351 - 993) / 993] x 100
Subtract the new number by the original number
351 - 993 = -642
-642 ÷ 993 = -0.6465256797583081
-0.6465256797583081 x 100 = -64.65%