-36.97% is the change from 971 to 612
Calculation steps:
[( 612 - 971 ) ÷ 971] x 100 = -36.97%
Formula
Percentage change = [(612 - 971) / 971] x 100
Subtract the new number by the original number
612 - 971 = -359
-359 ÷ 971 = -0.36972193614830073
-0.36972193614830073 x 100 = -36.97%