-33.99% is the change from 809 to 534
Calculation steps:
[( 534 - 809 ) ÷ 809] x 100 = -33.99%
Formula
Percentage change = [(534 - 809) / 809] x 100
Subtract the new number by the original number
534 - 809 = -275
-275 ÷ 809 = -0.3399258343634116
-0.3399258343634116 x 100 = -33.99%