-66.9% is the change from 710 to 235
Calculation steps:
[( 235 - 710 ) ÷ 710] x 100 = -66.9%
Formula
Percentage change = [(235 - 710) / 710] x 100
Subtract the new number by the original number
235 - 710 = -475
-475 ÷ 710 = -0.6690140845070423
-0.6690140845070423 x 100 = -66.9%