-45.92% is the change from 612 to 331
Calculation steps:
[( 331 - 612 ) ÷ 612] x 100 = -45.92%
Formula
Percentage change = [(331 - 612) / 612] x 100
Subtract the new number by the original number
331 - 612 = -281
-281 ÷ 612 = -0.4591503267973856
-0.4591503267973856 x 100 = -45.92%