-97.51% is the change from 764 to 19
Calculation steps:
[( 19 - 764 ) ÷ 764] x 100 = -97.51%
Formula
Percentage change = [(19 - 764) / 764] x 100
Subtract the new number by the original number
19 - 764 = -745
-745 ÷ 764 = -0.975130890052356
-0.975130890052356 x 100 = -97.51%