-78.83% is the change from 803 to 170
Calculation steps:
[( 170 - 803 ) ÷ 803] x 100 = -78.83%
Formula
Percentage change = [(170 - 803) / 803] x 100
Subtract the new number by the original number
170 - 803 = -633
-633 ÷ 803 = -0.788293897882939
-0.788293897882939 x 100 = -78.83%