-73.57% is the change from 999 to 264
Calculation steps:
[( 264 - 999 ) ÷ 999] x 100 = -73.57%
Formula
Percentage change = [(264 - 999) / 999] x 100
Subtract the new number by the original number
264 - 999 = -735
-735 ÷ 999 = -0.7357357357357357
-0.7357357357357357 x 100 = -73.57%