-64.59% is the change from 997 to 353
Calculation steps:
[( 353 - 997 ) ÷ 997] x 100 = -64.59%
Formula
Percentage change = [(353 - 997) / 997] x 100
Subtract the new number by the original number
353 - 997 = -644
-644 ÷ 997 = -0.645937813440321
-0.645937813440321 x 100 = -64.59%