-62.25% is the change from 612 to 231
Calculation steps:
[( 231 - 612 ) ÷ 612] x 100 = -62.25%
Formula
Percentage change = [(231 - 612) / 612] x 100
Subtract the new number by the original number
231 - 612 = -381
-381 ÷ 612 = -0.6225490196078431
-0.6225490196078431 x 100 = -62.25%