-20.62% is the change from 771 to 612
Calculation steps:
[( 612 - 771 ) ÷ 771] x 100 = -20.62%
Formula
Percentage change = [(612 - 771) / 771] x 100
Subtract the new number by the original number
612 - 771 = -159
-159 ÷ 771 = -0.20622568093385213
-0.20622568093385213 x 100 = -20.62%