-55.92% is the change from 955 to 421
Calculation steps:
[( 421 - 955 ) ÷ 955] x 100 = -55.92%
Formula
Percentage change = [(421 - 955) / 955] x 100
Subtract the new number by the original number
421 - 955 = -534
-534 ÷ 955 = -0.5591623036649215
-0.5591623036649215 x 100 = -55.92%