-63.21% is the change from 212 to 78
Calculation steps:
[( 78 - 212 ) ÷ 212] x 100 = -63.21%
Formula
Percentage change = [(78 - 212) / 212] x 100
Subtract the new number by the original number
78 - 212 = -134
-134 ÷ 212 = -0.6320754716981132
-0.6320754716981132 x 100 = -63.21%