-21.92% is the change from 771 to 602
Calculation steps:
[( 602 - 771 ) ÷ 771] x 100 = -21.92%
Formula
Percentage change = [(602 - 771) / 771] x 100
Subtract the new number by the original number
602 - 771 = -169
-169 ÷ 771 = -0.2191958495460441
-0.2191958495460441 x 100 = -21.92%