-57.04% is the change from 803 to 345
Calculation steps:
[( 345 - 803 ) ÷ 803] x 100 = -57.04%
Formula
Percentage change = [(345 - 803) / 803] x 100
Subtract the new number by the original number
345 - 803 = -458
-458 ÷ 803 = -0.5703611457036114
-0.5703611457036114 x 100 = -57.04%