-85.21% is the change from 534 to 79
Calculation steps:
[( 79 - 534 ) ÷ 534] x 100 = -85.21%
Formula
Percentage change = [(79 - 534) / 534] x 100
Subtract the new number by the original number
79 - 534 = -455
-455 ÷ 534 = -0.8520599250936329
-0.8520599250936329 x 100 = -85.21%