-30.24% is the change from 777 to 542
Calculation steps:
[( 542 - 777 ) ÷ 777] x 100 = -30.24%
Formula
Percentage change = [(542 - 777) / 777] x 100
Subtract the new number by the original number
542 - 777 = -235
-235 ÷ 777 = -0.30244530244530243
-0.30244530244530243 x 100 = -30.24%