-41.28% is the change from 642 to 377
Calculation steps:
[( 377 - 642 ) ÷ 642] x 100 = -41.28%
Formula
Percentage change = [(377 - 642) / 642] x 100
Subtract the new number by the original number
377 - 642 = -265
-265 ÷ 642 = -0.4127725856697819
-0.4127725856697819 x 100 = -41.28%