-75.06% is the change from 770 to 192
Calculation steps:
[( 192 - 770 ) ÷ 770] x 100 = -75.06%
Formula
Percentage change = [(192 - 770) / 770] x 100
Subtract the new number by the original number
192 - 770 = -578
-578 ÷ 770 = -0.7506493506493507
-0.7506493506493507 x 100 = -75.06%