-72.63% is the change from 643 to 176
Calculation steps:
[( 176 - 643 ) ÷ 643] x 100 = -72.63%
Formula
Percentage change = [(176 - 643) / 643] x 100
Subtract the new number by the original number
176 - 643 = -467
-467 ÷ 643 = -0.7262830482115086
-0.7262830482115086 x 100 = -72.63%