-35.87% is the change from 803 to 515
Calculation steps:
[( 515 - 803 ) ÷ 803] x 100 = -35.87%
Formula
Percentage change = [(515 - 803) / 803] x 100
Subtract the new number by the original number
515 - 803 = -288
-288 ÷ 803 = -0.3586550435865504
-0.3586550435865504 x 100 = -35.87%