-53.49% is the change from 731 to 340
Calculation steps:
[( 340 - 731 ) ÷ 731] x 100 = -53.49%
Formula
Percentage change = [(340 - 731) / 731] x 100
Subtract the new number by the original number
340 - 731 = -391
-391 ÷ 731 = -0.5348837209302325
-0.5348837209302325 x 100 = -53.49%