-37.11% is the change from 803 to 505
Calculation steps:
[( 505 - 803 ) ÷ 803] x 100 = -37.11%
Formula
Percentage change = [(505 - 803) / 803] x 100
Subtract the new number by the original number
505 - 803 = -298
-298 ÷ 803 = -0.3711083437110834
-0.3711083437110834 x 100 = -37.11%