-21.95% is the change from 770 to 601
Calculation steps:
[( 601 - 770 ) ÷ 770] x 100 = -21.95%
Formula
Percentage change = [(601 - 770) / 770] x 100
Subtract the new number by the original number
601 - 770 = -169
-169 ÷ 770 = -0.21948051948051947
-0.21948051948051947 x 100 = -21.95%