-20.44% is the change from 768 to 611
Calculation steps:
[( 611 - 768 ) ÷ 768] x 100 = -20.44%
Formula
Percentage change = [(611 - 768) / 768] x 100
Subtract the new number by the original number
611 - 768 = -157
-157 ÷ 768 = -0.20442708333333334
-0.20442708333333334 x 100 = -20.44%