-36.45% is the change from 963 to 612
Calculation steps:
[( 612 - 963 ) ÷ 963] x 100 = -36.45%
Formula
Percentage change = [(612 - 963) / 963] x 100
Subtract the new number by the original number
612 - 963 = -351
-351 ÷ 963 = -0.3644859813084112
-0.3644859813084112 x 100 = -36.45%