-64.99% is the change from 734 to 257
Calculation steps:
[( 257 - 734 ) ÷ 734] x 100 = -64.99%
Formula
Percentage change = [(257 - 734) / 734] x 100
Subtract the new number by the original number
257 - 734 = -477
-477 ÷ 734 = -0.6498637602179836
-0.6498637602179836 x 100 = -64.99%