-98.02% is the change from 757 to 15
Calculation steps:
[( 15 - 757 ) ÷ 757] x 100 = -98.02%
Formula
Percentage change = [(15 - 757) / 757] x 100
Subtract the new number by the original number
15 - 757 = -742
-742 ÷ 757 = -0.9801849405548216
-0.9801849405548216 x 100 = -98.02%