-66.6% is the change from 997 to 333
Calculation steps:
[( 333 - 997 ) ÷ 997] x 100 = -66.6%
Formula
Percentage change = [(333 - 997) / 997] x 100
Subtract the new number by the original number
333 - 997 = -664
-664 ÷ 997 = -0.6659979939819458
-0.6659979939819458 x 100 = -66.6%