-76.85% is the change from 717 to 166
Calculation steps:
[( 166 - 717 ) ÷ 717] x 100 = -76.85%
Formula
Percentage change = [(166 - 717) / 717] x 100
Subtract the new number by the original number
166 - 717 = -551
-551 ÷ 717 = -0.7684797768479776
-0.7684797768479776 x 100 = -76.85%