-34.92% is the change from 421 to 274
Calculation steps:
[( 274 - 421 ) ÷ 421] x 100 = -34.92%
Formula
Percentage change = [(274 - 421) / 421] x 100
Subtract the new number by the original number
274 - 421 = -147
-147 ÷ 421 = -0.3491686460807601
-0.3491686460807601 x 100 = -34.92%