-98.09% is the change from 785 to 15
Calculation steps:
[( 15 - 785 ) ÷ 785] x 100 = -98.09%
Formula
Percentage change = [(15 - 785) / 785] x 100
Subtract the new number by the original number
15 - 785 = -770
-770 ÷ 785 = -0.9808917197452229
-0.9808917197452229 x 100 = -98.09%