-65.86% is the change from 993 to 339
Calculation steps:
[( 339 - 993 ) ÷ 993] x 100 = -65.86%
Formula
Percentage change = [(339 - 993) / 993] x 100
Subtract the new number by the original number
339 - 993 = -654
-654 ÷ 993 = -0.6586102719033232
-0.6586102719033232 x 100 = -65.86%