-58.26% is the change from 642 to 268
Calculation steps:
[( 268 - 642 ) ÷ 642] x 100 = -58.26%
Formula
Percentage change = [(268 - 642) / 642] x 100
Subtract the new number by the original number
268 - 642 = -374
-374 ÷ 642 = -0.5825545171339563
-0.5825545171339563 x 100 = -58.26%