-76.21% is the change from 643 to 153
Calculation steps:
[( 153 - 643 ) ÷ 643] x 100 = -76.21%
Formula
Percentage change = [(153 - 643) / 643] x 100
Subtract the new number by the original number
153 - 643 = -490
-490 ÷ 643 = -0.7620528771384136
-0.7620528771384136 x 100 = -76.21%