-78.16% is the change from 824 to 180
Calculation steps:
[( 180 - 824 ) ÷ 824] x 100 = -78.16%
Formula
Percentage change = [(180 - 824) / 824] x 100
Subtract the new number by the original number
180 - 824 = -644
-644 ÷ 824 = -0.7815533980582524
-0.7815533980582524 x 100 = -78.16%