-77.67% is the change from 815 to 182
Calculation steps:
[( 182 - 815 ) ÷ 815] x 100 = -77.67%
Formula
Percentage change = [(182 - 815) / 815] x 100
Subtract the new number by the original number
182 - 815 = -633
-633 ÷ 815 = -0.7766871165644171
-0.7766871165644171 x 100 = -77.67%