-97.63% is the change from 803 to 19
Calculation steps:
[( 19 - 803 ) ÷ 803] x 100 = -97.63%
Formula
Percentage change = [(19 - 803) / 803] x 100
Subtract the new number by the original number
19 - 803 = -784
-784 ÷ 803 = -0.9763387297633873
-0.9763387297633873 x 100 = -97.63%