-85.82% is the change from 543 to 77
Calculation steps:
[( 77 - 543 ) ÷ 543] x 100 = -85.82%
Formula
Percentage change = [(77 - 543) / 543] x 100
Subtract the new number by the original number
77 - 543 = -466
-466 ÷ 543 = -0.858195211786372
-0.858195211786372 x 100 = -85.82%