-84.67% is the change from 522 to 80
Calculation steps:
[( 80 - 522 ) ÷ 522] x 100 = -84.67%
Formula
Percentage change = [(80 - 522) / 522] x 100
Subtract the new number by the original number
80 - 522 = -442
-442 ÷ 522 = -0.8467432950191571
-0.8467432950191571 x 100 = -84.67%