-76.76% is the change from 641 to 149
Calculation steps:
[( 149 - 641 ) ÷ 641] x 100 = -76.76%
Formula
Percentage change = [(149 - 641) / 641] x 100
Subtract the new number by the original number
149 - 641 = -492
-492 ÷ 641 = -0.7675507020280812
-0.7675507020280812 x 100 = -76.76%