-71.7% is the change from 643 to 182
Calculation steps:
[( 182 - 643 ) ÷ 643] x 100 = -71.7%
Formula
Percentage change = [(182 - 643) / 643] x 100
Subtract the new number by the original number
182 - 643 = -461
-461 ÷ 643 = -0.7169517884914464
-0.7169517884914464 x 100 = -71.7%