-30.64% is the change from 421 to 292
Calculation steps:
[( 292 - 421 ) ÷ 421] x 100 = -30.64%
Formula
Percentage change = [(292 - 421) / 421] x 100
Subtract the new number by the original number
292 - 421 = -129
-129 ÷ 421 = -0.30641330166270786
-0.30641330166270786 x 100 = -30.64%