-29.6% is the change from 642 to 452
Calculation steps:
[( 452 - 642 ) ÷ 642] x 100 = -29.6%
Formula
Percentage change = [(452 - 642) / 642] x 100
Subtract the new number by the original number
452 - 642 = -190
-190 ÷ 642 = -0.29595015576323985
-0.29595015576323985 x 100 = -29.6%