-90.66% is the change from 546 to 51
Calculation steps:
[( 51 - 546 ) ÷ 546] x 100 = -90.66%
Formula
Percentage change = [(51 - 546) / 546] x 100
Subtract the new number by the original number
51 - 546 = -495
-495 ÷ 546 = -0.9065934065934066
-0.9065934065934066 x 100 = -90.66%