-26.42% is the change from 212 to 156
Calculation steps:
[( 156 - 212 ) ÷ 212] x 100 = -26.42%
Formula
Percentage change = [(156 - 212) / 212] x 100
Subtract the new number by the original number
156 - 212 = -56
-56 ÷ 212 = -0.2641509433962264
-0.2641509433962264 x 100 = -26.42%