-55.99% is the change from 643 to 283
Calculation steps:
[( 283 - 643 ) ÷ 643] x 100 = -55.99%
Formula
Percentage change = [(283 - 643) / 643] x 100
Subtract the new number by the original number
283 - 643 = -360
-360 ÷ 643 = -0.5598755832037325
-0.5598755832037325 x 100 = -55.99%