-84.46% is the change from 547 to 85
Calculation steps:
[( 85 - 547 ) ÷ 547] x 100 = -84.46%
Formula
Percentage change = [(85 - 547) / 547] x 100
Subtract the new number by the original number
85 - 547 = -462
-462 ÷ 547 = -0.8446069469835467
-0.8446069469835467 x 100 = -84.46%