-65.22% is the change from 690 to 240
Calculation steps:
[( 240 - 690 ) ÷ 690] x 100 = -65.22%
Formula
Percentage change = [(240 - 690) / 690] x 100
Subtract the new number by the original number
240 - 690 = -450
-450 ÷ 690 = -0.6521739130434783
-0.6521739130434783 x 100 = -65.22%