-55.23% is the change from 612 to 274
Calculation steps:
[( 274 - 612 ) ÷ 612] x 100 = -55.23%
Formula
Percentage change = [(274 - 612) / 612] x 100
Subtract the new number by the original number
274 - 612 = -338
-338 ÷ 612 = -0.5522875816993464
-0.5522875816993464 x 100 = -55.23%